Assertion: hamburger | /r/AtLocation | 19th or early 20th century
Facets:
value: most likely
type: DEGREE
Source sentences:
text: We know that it appeared, in the shape that we know it today, in 19th or early 20th century and that it has predecessors that date to a 12th century.
text: The Hamburger most likely first appeared in the 19th or early 20th century.
text: Hamburgers first appeared in the 19th or early 20th century.