Assertion: cave | /r/CapableOf | utilize a labor force of 70 slaves
Facets:
value: to build the soil leaching apparatus
type: PURPOSE
Source sentences:
text: Soon the cave was being mined for calcium nitrate on an industrial scale, utilizing a labor force of 70 slaves to build and operate the soil leaching apparatus, as well as to haul the raw soil from deep in the cave to the central processing site.