A set of SPARQL examples that are used in different SIB resources
Check there are no entries whose gene is located on chromosome "unknown" which that have a end position which is NOT "0"
PREFIX : <http://nextprot.org/rdf/>
PREFIX cv: <http://nextprot.org/rdf/terminology/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
select distinct ?entry where {
?entry :gene ?gene .
?gene :chromosome "unknown"^^xsd:string .
?gene :end ?end .
filter (?end = "0"^^xsd:string )
}
graph TD
classDef projected fill:lightgreen;
classDef literal fill:orange;
classDef iri fill:yellow;
v1("?end")
v2("?entry"):::projected
v3("?gene")
c4(["unknown"]):::literal
f0[["?end = '0'"]]
f0 --> v1
v2 --":gene"--> v3
v3 --":chromosome"--> c4
v3 --":end"--> v1