Assertion: bookmaker's book | /r/HasProperty | abbreviated as book
Facets:
value: sometimes
type: TEMPORAL
Source sentences:
text: In the United States a sportsbook or a race and sports book (sometimes abbreviated as book) is a place where a gambler can wager on various sports competitions, including golf, football, basketball, baseball, hockey, soccer, horse racing, greyhound racing, boxing, and mixed martial arts.