About: satellite navigation system

Premodifier: satellite navigation
Head noun: system

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

Broader concepts

label	provenance	confidence
modern technology	isap:17875026	0.750832
feature	isap:445461379	0.689562
technology	isap:17874827	0.636903
vehicle	isap:442276697	0.583030
communication	isap:22344394	0.415093

Narrower concepts

label	provenance	confidence
gps	isap:209748038	0.601322
glonass	isap:269103723	0.538667
gp	isap:108344173	0.521276
tomtom	isap:394701698	0.357224
galileo	isap:270011732	0.328423
beidou	isap:387304102	0.230769