Assertion: tank's number | /r/HasProperty | halved
Facets:
value: approximately
type: DEGREE
value: due to a policy change
type: CAUSE
Source sentences:
text: The number of self-propelled tank destroyer battalions had been approximately halved due to a policy change forced by the AGF, who wanted towed guns to be used and hence far fewer self-propelled units were needed for the Tank Destroyers