jena - Count a specific relationship in OWL File using sparql query -

i want count assertions of specific relationship in owl file. if following whole ontology:-

<owl:namedindividual rdf:about="file:/c:/myont.owl#comfort">   <synonymof rdf:resource="file:/c:/myont.owl#impunity"/>   <synonymof rdf:resource="file:/c:/myont.owl#sooth"/>   <synonymof rdf:resource="file:/c:/myont.owl#ease"/> </owl:namedindividual>  <owl:namedindividual rdf:about="file:/c:/myont.owl#population">   <synonymof rdf:resource="file:/c:/myont.owl#habitation"/> </owl:namedindividual> 

then sparql query should give me like:-

       synonymof = 4 (i.e 4 assertions <synonymof> relation 

i intend run query on jena fuzeki.

a straightforward way be:

prefix : <http://example.com#> select (count(?o) ?count) {   ?s :synonymof ?o }  

however, binding assigned specific objects, might want consider using group by:

prefix : <http://example.com#> select ?s (count(?o) ?count) {   ?s :synonymof ?o } group ?s