( In ( ( this case ) ( ( ( the revolution ) ( of ( ( the earth ) ( about ( the sun ) ) ) ) ) ( also ( ( has ( a ( small effect ) ) ) ( -LRB- ( ( ( if ( we ( ( ( ( revolved once ) ( every ( 24 hours ) ) ) and ) ( rotated ( ( once ( a year ) ) ( , ( it ( would ( have ( the ( dominant effect ) ) ) ) ) ) ) ) ) ) ) . ) -RRB- ) ) ) ) ) ) )
(ROOT (PP (IN In) (NP (NP (DT this) (NN case)) (SBAR (S (NP (NP (DT the) (NN revolution)) (PP (IN of) (NP (NP (DT the) (NN earth)) (PP (IN about) (NP (DT the) (NN sun)))))) (ADVP (RB also)) (VP (VBZ has) (NP (DT a) (JJ small) (NN effect)) (PRN (-LRB- -LRB-) (FRAG (SBAR (IN if) (S (NP (PRP we)) (VP (VP (VBD revolved) (ADVP (RB once)) (NP (DT every) (CD 24) (NNS hours))) (CC and) (VP (VBD rotated) (S (NP (RB once) (DT a) (NN year)) (, ,) (NP (PRP it)) (VP (MD would) (VP (VB have) (NP (DT the) (JJ dominant) (NN effect))))))))) (. .)) (-RRB- -RRB-))))))))
In this case the revolution of the earth about the sun also has a small effect (if we revolved once every 24 hours and rotated once a year, it would have the dominant effect.)
(ROOT (S (NP (NNP Earth)) (VP (VBZ makes) (NP (DT a) (JJ complete) (NN revolution)) (NP (ADVP (IN around) (NP (DT the) (NN sun)) (PP (IN about) (ADVP (RB once)))) (DT every) (NN year))) (. .)))