Before revision: Commonsense question answering (QA) requires the modeling of general background knowledge about how the world operates and how entities interact with each other . Prior works leveraged manually curated commonsense knowledge graphs to help commonsense reasoningand demonstrated their effectiveness .
After revision: Commonsense question answering (QA) requires the modeling of general background knowledge about how the world operates and how entities interact with each other . Prior works use commonsense knowledge graphs to help commonsense reasoningand demonstrated their effectiveness .