SQUALL to SPARQL Translator

Your SQUALL sentence:

Does res:Cuban_Missile_Crisis have an earlier date than res:Bay_of_Pigs_Invasion?

The SPARQL translation:

ASK {

FILTER (res:Cuban_Missile_Crisis != res:Bay_of_Pigs_Invasion) .
res:Cuban_Missile_Crisis :date ?x1 .
res:Bay_of_Pigs_Invasion :date ?x2 .
FILTER (?x1 < ?x2) .

}

Run at DBpedia SPARQL endpoint (assuming prefixes res: for resources, : and dbo: for ontology, and dbp: for properties in addition to DBpedia namespace definitions).

Load in DBpedia SPARQL Explorer (assuming the same prefixes as above).