Assertion: tank's engine | /r/HasProperty | preferred
Facets:
value: often
type: DEGREE
Source sentences:
text: These modifications ranged from engine improvements (US or German engines and transmissions were often preferred), gunnery improvements (adoption of the standard NATO L7 gun for example) or with new Firing Control Systems, (gun stabilization, target management computer, laser range finder, new day-night all-weather IR sights).