How many {short-term exposure limit} are for {antimony} ?
What is the minimum time that a person can be exposed to antimony?
What's the shortest time a person can be exposed to antimony?
SELECT ( COUNT ( ?z ) AS ?b ) { resource:antimony property:short-term_exposure_limit ?z }
SELECT (COUNT(?obj) AS ?objs ) {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q1099> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2407> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
} 

SELECT (COUNT(?obj) AS ?value ) { wd:Q1099 wdt:P2407 ?obj }
4