What is the {human} for {participant of} of {Lewis and Clark Expedition}
Who was involved in the Lewis and Clark expedition?
Who were the members of the Lewis and Clark Expedition?
SELECT DISTINCT ?h WHERE { ?h rdf:type ontology:human . ?h property:participant_in resource:The_Lewis_and_Clark_Expedition }
select distinct ?subj where { ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> ?subj . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P1344> . ?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <http://wikidata.dbpedia.org/resource/Q505802> . ?subj <http://www.wikidata.org/entity/P31> <http://wikidata.dbpedia.org/resource/Q5> } 
 select distinct ?sbj where { ?sbj wdt:P1344 wd:Q505802 . ?sbj wdt:P31 wd:Q5 } 
Meriwether Lewis William Clark John Colter York