Assertion: tank's speed | /r/HasProperty | no substitute
Facets:
value: for medium
type: OTHER
value: for firepower
type: CAUSE
value: for tanks
type: OTHER
value: for armour
type: CAUSE
Source sentences:
text: World War II had shown that the speed of a light tank was no substitute for armour & firepower and medium tanks were vulnerable to newer weapon technology, rendering them obsolete.[citation needed]