( We ( ( extend ( already ( ( known ( ( scaling relations ) ( -LRB- ( ( regarding ( ( ( ( mass-loss , ) ( terminal velocity ) ) and ) ( wind-momentum rate ) ) ) -RRB- ) ) ) ) ( with ( respect ( to ( this quantity ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (PRP We)) (VP (VBP extend) (S (VP (ADVP (RB already)) (VBN known) (NP (NP (VBG scaling) (NNS relations)) (PRN (-LRB- -LRB-) (PP (VBG regarding) (NP (NP (NNS mass-loss)) (, ,) (NP (NN terminal) (NN velocity)) (CC and) (NP (JJ wind-momentum) (NN rate)))) (-RRB- -RRB-))) (PP (IN with) (NP (NP (NN respect)) (PP (TO to) (NP (DT this) (NN quantity)))))))) (. .)))
We extend already known scaling relations (regarding mass-loss, terminal velocity and wind-momentum rate) with respect to this quantity.
(ROOT (S (NP (NNP Momentum)) (VP (VBZ is) (ADJP (RB directly) (VBN related) (PP (TO to) (NP (NP (DT both) (NN mass)) (CC and) (NP (NN velocity)))))) (. .)))