Assertion: steam engine | /r/HasProperty | powerful
Facets:
value: for leather bellows
type: CAUSE
Source sentences:
text: There was thus the potential for steam engines to be developed that were small and powerful enough to propel themselves and other objects.
text: A steam car is a type of automobile that was powered by steam in much the same way steam engines on trains are powered.
text: Steam engines were too powerful for leather bellows, so cast iron blowing cylinders were developed in 1768.