Assertion: blue led | /r/CapableOf | become available
Facets:
value: by the late 1990s
type: TEMPORAL
value: widely
type: DEGREE
Source sentences:
text: By the late 1990s, blue LEDs had become widely available.
text: Blue LEDs became available in the late 1990s.
text: By the late 1990s, blue LEDs became widely available.