Assertion: tower's type | /r/HasProperty | stacked into pile
Facets:
value: to support both the structure
type: PURPOSE
value: to support the jacks
type: PURPOSE
Source sentences:
text: With both types of jacking systems described here wood beams called cribs, cribbing or box cribs are stacked into piles to support both the structure and the jacks as the structure is lifted in increments.