About: clean burning fuel

Premodifier: clean burning
Head noun: fuel

Same concepts

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
natural gas	isap:246503418	0.741513
hydrogen	isap:377597659	0.426488
methanol	isap:378580393	0.375892
propane	isap:71852900	0.374678
butane	isap:493520834	0.365228
biodiesel	isap:150975853	0.360714