Assertion: hamburger | /r/HasProperty | invented by fletcher davis
Facets:
value: in his small cafe in athens
type: LOCATION
value: in the 1880s
type: TEMPORAL
Source sentences:
text: According to the Cattlemen's Beef Board and the National Cattlemen's Beef Association, the hamburger was invented by Fletcher Davis in his small cafe in Athens, Texas in the 1880s.