Assertion: price auction | /r/HasProperty | non-truthful auction mechanism
Facets:
value: for sponsored search
type: PURPOSE
value: for multiple items
type: PURPOSE
Source sentences:
text: The generalized second-price auction (GSP) is a non-truthful auction mechanism for multiple items.
text: A Generalized first-price auction is a non-truthful auction mechanism for sponsored search (aka position auction).