Premodifier: relative
Head noun: speed

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

Broader concepts

labelprovenanceconfidence
factorisap:1531961820.683398
objectisap:1533074270.506804
speedisap:3714354590.356215

Narrower concepts

labelprovenanceconfidence
speedisap:3714354470.425626