W3C

– DRAFT –
RDF-star WG meeting

19 February 2026

Attendees

Present
AndyS, AZ, doerthe, enrico, gtw, j22, lisp, niklasl, olaf, pchampin, pfps, TallTed, tl
Regrets
ktk, ora
Chair
pchampin
Scribe
doerthe

Meeting minutes

Approval of last week’s minutes: 1

<pchampin> PROPOSED: approve minutes https://www.w3.org/2026/02/12-rdf-star-minutes.html

<pchampin> +0

<TallTed> +1

<j22> +1

<doerthe> +0

<tl> +1

<pfps> minutes look fine to me

<pfps> +1

<olaf> +1

<Souri> +1

<lisp> +1

<gtw> +1

<niklasl> +1

<AndyS> +1

<AZ> +0 (not present)

RESOLUTION: approve minutes https://www.w3.org/2026/02/12-rdf-star-minutes.html

Next Horizontal Reviews

pchampin: question here is, should we start the next batch: the rest of the "turtle family"? Does the group think that we are ready for that?

<niklasl> Sound good to me.

<AndyS> Sounds good.

<olaf> What do the editors of these docs think?

pchampin: we should ask the editor, unfortunately, Dominik is not present

<pchampin> STRAWPOLL: should we start Horizontal Review, aiming for CR, for n-quads, turtle and trig?

pchampin: but we could do a straw poll

<pchampin> +1

<niklasl> +1

<Souri> +1

<pfps> +1

<enrico> +1

<doerthe> +1

<AZ> +1

<olaf> +1

<gtw> +1

<TallTed> +1

<tl> +0

<AndyS> NQ needs profile?

<j22> +0

<AndyS> w3c/rdf-n-quads#88

<gb> Issue 88 `profile` in Internet Media Type (by domel)

<lisp> +1

phampin: we need to add the profile for NQ, I think the same for turtle and TriG
… but these issues do not stop us from requesting horizontal review

<AndyS> w3c/rdf-turtle#124

<gb> Issue 124 Proposal: Support trailing commas, not just trailing semicolons (by trwnh)

AndyS: there is one outstanding issue, namely w3c/rdf-turtle#124
… we discussed that one last week
… I did not close it yet

<pchampin> i|github.com/w3c/rdf-turtle/issues/124/|subtopic: trailing commas in Turtle

pchampin: Did we decide not not do the change because it would break other things?

Andys: yes

pchampin: anything else there to add?

<AndyS> +1 to go to horizontal review

ACTION: pchampin to check with domel that he is OK to move forward to Horizontal review and CR for n-quads, turtle and trig

<gb> Created action #188

status of N-Triples

<pchampin> w3c/rdf-n-triples#79

<gb> Issue 79 Horizontal Reviews tracker for N-Triples (by pchampin) [ms:CR]

Souri: I am all for going for N-quads, turtle, and TriG. How do we deal with the open issues of N-triples?

<pchampin> w3c/rdf-n-triples#84

<gb> Issue 84 `version` parameter registration conflicts with common practice. (by afs)

pchampin: I am just checking the issues, most of these seem to not stop us, but I will have a closer look

Review of open actions, available at 2

pchampin: anything from you to report, niklasl?

niklasl: not really, waiting for feedback

Identifying issues to solve before CR 3

pchampin: anything to report on these issues?

Issue 248 Resolve "Editor's notes" (by afs) [ms:CR]

pchampin: this one w3c/rdf-concepts#248 is almost done, only acknowledgements missing
… any comments on that?

Semantic tests Issue 179 Semantics tests: location of test files. (by afs) [ms:CR] Issue 181 Semantics tests: Confirm that the test suite is complete and executable (by afs) [ms:CR] Issue 183 Semantics tests : open issues (by afs) [ms:CR]

pchampin: there are some problems with the test suite of RDF semantics
… I ran my implementation against the tests and created two PRs for the issues I found
… I also raised a few issues

pfps: I reviewed the PRs and they look good to me
… for your other issues, I created one PR (for the most easy one)
… we need to think about the missing entailment rule

<pchampin> w3c/rdf-semantics#185

<gb> Issue 185 missing pattern for RDFS entailment (by pchampin) [spec:enhancement]

pfps: I found a problem with overlapping value spaced, I will submit it later

technically all these changes are editorial as they only cover the informative entailment rules
… one problem was about the completeness of the test suite

pfps: it cannot be complete but we are the most important cases

pchampin: AZ, you also have test cases, right? Maybe it is a good time to add these now?

AZ: I made some for RDF 1.1 but they were never added, not sure whether we should do it now. It mainly covers corner cases
… of course I can add them

AndyS: can we move the manifest somewhere special, so that people can directly see what needs to be covered

pchampin: we have a subfolder structure which can be confusing, especially manifest-az, the other manifests seem right to me
… if we move manifest-AZ, would that solve the problem for you Andy?

AndyS: yes

Any Other Business (AOB), time permitting

w3c/rdf-semantics#185

enrico: you opened an issues for a missing entailment and I think it is not sound
… because what if you start with an empty graph

pchampin: but there are axiomatic triples in RDFS

enrico: ok, but what if they have a triple term?

<niklasl> IPR from IR x IP x IR

pchampin: but there are no triple terms in the axiomatic triples

<niklasl> at least rdf:type

pfps: not sure whether it should be an axiom or an entailment rules
… the problem is the fresh blank node
… we should add it as a rule

pchampin: I will add more PRs
… there is also a problem with integer and decimal as these overlap

niklasl: I am afraid of an infinite amount of triples in w3c/rdf-semantics#185

<gb> Issue 185 missing pattern for RDFS entailment (by pchampin) [ms:CR] [spec:enhancement]

pchampin: it is not a problem because we use a blank node here. But of course we can have an infinite amount of proposition.

ISWC tutorial

Souri: There was a tutorial about RDF-star at ISWC, could we keep the slides for that up to date?

enrico: so far it is up to date
… I will use the slides in my note about reification

<pchampin> https://www.w3.org/Talks/2025/iswc-tutorial-rdfsparql-12/

Summary of action items

  1. pchampin to check with domel that he is OK to move forward to Horizontal review and CR for n-quads, turtle and trig

Summary of resolutions

  1. approve minutes https://www.w3.org/2026/02/12-rdf-star-minutes.html
Minutes manually created (not a transcript), formatted by scribe.perl version 248 (Mon Oct 27 20:04:16 2025 UTC).

Diagnostics

Succeeded: s/next batch/next batch: the rest of the "turtle family"

Failed: i|github.com/w3c/rdf-turtle/issues/124/|subtopic: trailing commas in Turtle

Succeeded: s/ACTION pchampin to check with domel that he is OK to move forward to Horizontal review and CR for n-quads, turtle and trig/

Succeeded: s|https://github.com/w3c/rdf-concepts/issues/248|-> Issue 248 Resolve "Editor's notes" (by afs) [ms:CR] https://github.com/w3c/rdf-concepts/issues/248

Succeeded: s|w3c/rdf-semantics#179|-> https://github.com/w3c/rdf-semantics/issues/179 "Issue 179 Semantics tests: location of test files. (by afs) [ms:CR]"

Succeeded: s|w3c/rdf-semantics#181|-> https://github.com/w3c/rdf-semantics/issues/181 "Issue 181 Semantics tests: Confirm that the test suite is complete and executable (by afs) [ms:CR]"

Succeeded: s|w3c/rdf-semantics#183|-> Issue 183 Semantics tests : open issues (by afs) [ms:CR] https://github.com/w3c/rdf-semantics/issues/183

Succeeded: s|manifest/AZ|manifest-az

Succeeded: i|you opened an issues|subtopic: https://github.com/w3c/rdf-semantics/issues/185

Succeeded: i|was a tutorial|subtopic: ISWC tutorial

Maybe present: phampin, Souri

All speakers: AndyS, AZ, enrico, niklasl, pchampin, pfps, phampin, Souri

Active on IRC: AndyS, AZ, doerthe, enrico, gtw, j22, ktk, lisp, niklasl, olaf, pchampin, pfps, Souri, TallTed, tl