Assertion: latin alphabet's letter | /r/CapableOf | become angular
Facets:
value: in the late 12th century
type: TEMPORAL
value: in shape
type: OTHER
value: gradually
type: MANNER
Source sentences:
text: In the late 12th century and during the next two centuries, the letters gradually became angular in shape; this resulted from the pen being held in a position that made a slanting stroke.