About: navigation map

Premodifier: navigation
Head noun: map

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

Broader concepts

label	provenance	confidence
function	isap:330936812	0.607857
service	isap:235820147	0.549034
information	isap:110734513	0.543703
feature	isap:235420191	0.483583

Narrower concepts

label	provenance	confidence
economical route	isap:325784326	0.165386