What is {density} of {calcium hydroxide} that is {temperature} is {20.0} ?
What is the density of Calcium Hydroxide at 20.0 degrees Celsius?
SELECT ?obj WHERE { wd:Q182849 p:P2054 ?s . ?s ps:P2054 ?obj . ?s pq:P2076 ?x filter(contains(?x,'20.0')) }
select distinct ?obj  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q182849> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2054> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> ?obj .
?statement <http://www.wikidata.org/entity/P2076> <20.0>
} 

Calcium Hydroxide has what density at 20 degrees Celsius?