Assertion: vegetable oil's use | /r/CapableOf | entail much extra labor
Facets:
Source sentences:
text: In case further development of vegetable oils as fuel proves practicable, it will simplify the fuel problems of many tropical localities remote from mineral fuel, and where the use of wood entails much extra labor and other difficulties connected with the various heating capacities of the wood's use, to say nothing of the risk of indiscriminate deforestation" .