What is the full name of the EXPO ontology?
SELECT ?full_name
WHERE {
  orkgr:R8342 orkgp:compareContribution ?cont.
  ?cont orkgp:P7034 ?ontology.
  ?ontology rdfs:label ?ont_lbl;
            orkgp:P7035 ?full_name. 
  FILTER(REGEX(STR(?ont_lbl), "expo", "i"))
}