About: significant hurdle

Premodifier: significant
Head noun: hurdle

Same concepts

Broader concepts

label	provenance	confidence

Narrower concepts

label	provenance	confidence
lack of a hydrogen	isap:305446780	0.595614
application	isap:143549732	0.424093
point	isap:165241627	0.212270
economy	isap:269831130	0.208328
area	isap:301007029	0.179925
however	isap:274651876	0.138117
system	isap:394475264	0.125432