what is the {point in time} for {United States dollar} has {price} as {0.77101} ?
What year was the dollar priced at 77 cents ?
when was the price for the united states dollar at 0.77101 around?
SELECT ?t WHERE { FILTER ( ?m = 0.77101 ) . ?y property:point_in_time ?t . resource:United_States_dollar property:price ?y . ?y property:price ?m }
select distinct ?value  where {
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#subject> <http://wikidata.dbpedia.org/resource/Q4917> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#predicate> <http://www.wikidata.org/entity/P2284> .
?statement <http://www.w3.org/1999/02/22-rdf-syntax-ns#object> <0.77101> .
?statement <http://www.wikidata.org/entity/P585> ?value. 
} 

SELECT ?value WHERE { wd:Q4917 p:P2284 ?s . ?s ps:P2284 ?x filter(contains(?x , '0.77101')) . ?s pq:P585 ?value}