( Sif ( ( has ( ( inspired ( ( the name ) ( of ( a volcano ) ) ) ) ( on ( ( the ( planet Venus ) ) ( -LRB- ( ( Sif Mons ) -RRB- ) ) ) ) ) ) . ) )
(ROOT (S (NP (NNP Sif)) (VP (VBZ has) (VP (VBN inspired) (NP (NP (DT the) (NN name)) (PP (IN of) (NP (DT a) (NN volcano)))) (PP (IN on) (NP (NP (DT the) (NN planet) (NN Venus)) (PRN (-LRB- -LRB-) (NP (NNP Sif) (NNP Mons)) (-RRB- -RRB-)))))) (. .)))
Sif has inspired the name of a volcano on the planet Venus (Sif Mons).
(ROOT (S (NP (NNP Venus)) (VP (VBZ has) (NP (DT the) (JJS most) (NNS volcanoes))) (. .)))