Assertion: ethylene | /r/HasProperty | c 2 h 4
Facets:
Source sentences:
text: Ethylene (C 2 H 4 ) is a gaseous hydrocarbon commonly produced by the cracking of ethane , which in turn is a major constituent of natural gas or can be distilled from petroleum .
text: Ethylene (C 2 H 4 ) is a gas that affects many aspects of plant growth