( ( ( Every ( 24 hours ) ) ( our earth ) ) ( ( makes ( ( a ( complete rotation ) ) ( on ( its axis ) ) ) ) . ) )
(ROOT (S (NP (NP (DT Every) (CD 24) (NNS hours)) (NP (PRP$ our) (NN earth))) (VP (VBZ makes) (NP (NP (DT a) (JJ complete) (NN rotation)) (PP (IN on) (NP (PRP$ its) (NNS axis))))) (. .)))
Every 24 hours our earth makes a complete rotation on its axis.
(ROOT (S (NP (PRP It)) (VP (VBZ takes) (NP (NP (CD 24) (NNS hours)) (PP (IN for) (NP (DT the) (NN earth) (S (VP (TO to) (VP (VB make) (NP (NP (DT a) (JJ complete) (NN rotation)) (PP (IN of) (NP (PRP$ its) (NNS axis))))))))))) (. .)))