Assertion: brattice | /r/CapableOf | remain important
Facets:
value: vitally
type: DEGREE
value: underground however
type: OTHER
value: for directing the current of air
type: PURPOSE
Source sentences:
text: Underground however, brattices remained vitally important for directing the current of air throughout the whole of the colliery.
text: Underground however, brattices remained vitally important for directing the current of air throughout the whole of the colliery.