Assertion: tank's engine | /r/HasProperty | planned for the mark iv
Facets:
value: originally
type: MANNER
Source sentences:
text: The Mark V was, at first, intended to be a completely new design of tank, of which a wooden mock-up had been completed; however, when the new engine and transmission originally planned for the Mark IV became available in December 1917, the first, more advanced Mark V design was abandoned to avoid disrupting production.