PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
PREFIX foaf: <http://xmlns.com/foaf/0.1/>
PREFIX rev: <http://www.purl.org/stuff/rev#>
PREFIX vcard: <http://www.w3.org/2006/vcard/ns#>
PREFIX xfn: <http://gmpg.org/xfn/11#>

SELECT DISTINCT ?rating ?name ?region ?homepage ?xfnhomepage ?hotelname

FROM <http://www.w3.org/TR/grddl-primer/janefriends.rdf>
FROM <http://www.w3.org/TR/grddl-primer/hotel-data.rdf>


WHERE {
?x rev:hasReview ?review;
   vcard:ADR ?address;
   vcard:FN ?hotelname.
?review rev:rating ?rating .
?address vcard:Locality ?region.

FILTER (?rating > "2" && ?region = "Edinburgh").

?review rev:reviewer ?reviewer.
?reviewer foaf:name ?name;
              foaf:homepage ?homepage.

?y xfn:friend ?xfnfriend.
?xfnfriend foaf:homepage ?xfnhomepage.

FILTER (?xfnhomepage = ?homepage).
}