Assertion: balloon's envelope | /r/HasProperty | constructed of synthetic materials
Facets:
value: with glued
type: OTHER
value: with cemented
type: OTHER
value: mainly
type: DEGREE
value: with sealed
type: OTHER
value: nowadays
type: TEMPORAL
Source sentences:
text: Formerly made of rubberized cotton, envelopes nowadays are constructed mainly of synthetic materials with their seams cemented, glued or sealed.