Question: Which medicines have a major drug interaction with erythromycin?
Paraphrase: Which medications have a major sedate interaction with erythromycin?
SPARQL (Wikidata):  select distinct ?obj where { wd:Q213511 wdt:P769 ?obj . ?obj wdt:P31 wd:Q12140 } 
Answer: clarithromycin, pimozide, azithromycin, droperidol, haloperidol, chlorpromazine, anagrelide, dronedarone, amiodarone, quinidine, sotalol, pentamidine, procainamide, terfenadine, sevoflurane, flecainide, sulpiride, chloroquine, astemizole, escitalopram, domperidone, moxifloxacin, disopyramide, cisapride, halofantrine, sparfloxacin, dofetilide, ibutilide, bepridil, mesoridazine, probucol, arsenic trioxide, cocaine, thioridazine