About: phosphonic acid

Premodifier: phosphonic
Head noun: acid

Same concepts
http://dbpedia.org/resource/Phosphorous_acid

Broader concepts

label	provenance	confidence
functional group	isap:89314929	0.624468
high-boiling organic liquid	isap:308966567	0.602481
ligand	isap:308482422	0.465983
acid	isap:170897431	0.435653

Narrower concepts

label	provenance	confidence
acid	isap:170897219	0.278466
alkyl	isap:194914413	0.263897