Question: What medication treats bipolar disorder?
Paraphrase: Bipolar disorder treats by which medicatication
SPARQL (Wikidata):  select distinct ?sbj where { ?sbj wdt:P2175 wd:Q131755 . ?sbj wdt:P31 wd:Q12140 } 
Answer: olanzapine, topiramate, clozapine, clonazepam, quetiapine, lamotrigine, gabapentin, carbamazepin, risperidone, tiagabine