Assertion: vault | /r/AtLocation | necessary
Facets:
value: to introduce transverse ribs
type: PURPOSE
value: in later examples
type: OTHER
value: as in king's college chapel
type: LOCATION
Source sentences:
text: In later examples, as in King's College Chapel, Cambridge, on account of the great dimensions of the vault, it was found necessary to introduce transverse ribs, which were required to give greater strength.