Input-output format control (N3)

--n3
--n3=<flags>

where flags can be from:

a   Anonymous nodes should be output using the _: convention (p flag or not).
d   Don't use default namespace (empty prefix)
i   Use identifiers from store - don't regen on output
l   List syntax suppression. Don't use (..)
n   No numeric syntax - use strings typed with ^^ syntax
p   Prefix suppression - don't use them, always URIs in <> instead of qnames.
q   Quiet - don't make comments about the environment in which processing was done.
r   Relative URI suppression. Always use absolute URIs.
s   Subject must be explicit for every statement. Don't use ";" shorthand.
t   "this" and "()" special syntax should be suppresed.