Assertion: gas | /r/HasProperty | employed as economical substitute
Facets:
value: for candles
type: PURPOSE
value: for lamps
type: PURPOSE
Source sentences:
text: Later in the 18th century William Murdoch stated: "the gas obtained by distillation from coal, peat, wood and other inflammable substances burnt with great brilliancy upon being set fire to … by conducting it through tubes, it might be employed as an economical substitute for lamps and candles.