( ( Elliptical Smooth ) ( ( ( ( football-shaped galaxies ) ( with ( little ( ( gas and ) dust ) ) ) ) ( between stars ) ) . ) )
(ROOT (S (NP (NNP Elliptical) (NNP Smooth)) (VP (VBD football-shaped) (NP (NNS galaxies)) (PP (IN with) (NP (JJ little) (NN gas) (CC and) (NN dust))) (PP (IN between) (NP (NNS stars)))) (. .)))
Elliptical Smooth football-shaped galaxies with little gas and dust between stars.
(ROOT (S (NP (PRP You)) (VP (VBP call) (NP (NP (JJ egg-shaped) (NNS galaxies)) (, ,) (SBAR (WHNP (WDT which)) (S (VP (VBP are) (ADJP (JJ reddish) (S (VP (TO to) (VP (VB yellowish) (PP (IN in) (NP (NN color))) (SBAR (IN because) (S (NP (PRP they)) (VP (VBP contain) (NP (NP (ADJP (RB mostly) (JJ old)) (NNS stars)) (, ,) (NP (JJ elliptical) (NNS galaxies))))))))))))))) (. .)))