Question: Name the chemical compound used in the drug to treat allergic rhinitis.
Paraphrase: What chemical treats allergic rhinitis?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q272436 wdt:P2176 ?obj . ?obj wdt:P31 wd:Q11173 } 
Answer: fexofenadine, betamethasone, montelukast, chlorcyclizine, flunisolide, ramatroban, (R)-carbinoxamine, cyproheptadine hydrochloride