Premodifier: free
Head noun: variable

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

Broader concepts

labelprovenanceconfidence
variableisap:573681360.655311
runtimeisap:3433235260.248411

Narrower concepts

labelprovenanceconfidence
variableisap:573680650.333815
xisap:4725172490.219883
bisap:4723951900.212779
yisap:4724407750.166013