Assertion: sanatorium | /r/CapableOf | become common
Facets:
value: in the 19th century
type: TEMPORAL
value: quite
type: DEGREE
value: in europe
type: LOCATION
Source sentences:
text: In Europe, sanatoriums became quite common in the 19th century.
text: In the U.S., sanatoriums were started and became common in the 20th century.