@prefix : <http://example/> .
@prefix xsd:        <http://www.w3.org/2001/XMLSchema#> .

:x a :A .
:x :s "first" .
:x :t "Test" .
:x :u "optional" .

:y a :A .
:y :s "second" .
:y :t "Text" .

:z a :A .
:z :s "third" .
:z :t "for" .
:z :u "optional for third" .

:q a :A .
:q :s "fourth" .
:q :t "testing" .

:w a :A .
:w :s "fifth" .
:w :t "purposes" .

:e a :A .
:e :s "other" .

:r a :A .

:ba a :B .
:ba :o "First group" .
:ba :a :x .
:ba :a :y .
:ba :a :z .
:ba :a :e .

:bb a :B .
:bb :o "Second group" .
:bb :a :q .
:bb :a :w .
:bb :a :e .

:bc a :B .
:bc :o "Third group" .

