#!

# tests OPTIONAL with large number of NULL results

$TESTPATH/frontend/4s-query $1 'PREFIX vocab: <http://www.census.gov/tiger/2002/vocab#> PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#> PREFIX feature: <http://www.census.gov/tiger/2002/CFCC/> SELECT DISTINCT * WHERE { ?place vocab:name ?name . ?place a vocab:Landmark . OPTIONAL { ?place vocab:location _:loc . _:loc vocab:lat ?latitude ; vocab:long ?longitude . } }' | sort
