( ( ( ( THE ( MOON ( DOES ( NOT ROTATE ) ) ) ) : ) ( ( The moon ) ( completes ( ( ( exactly ( one rotation ) ) ( about ( ( its axis ) ( in ( ( the ( same period ) ) ( of time ) ) ) ) ) ) ( it ( takes ( to ( make ( ( one revolution ) ( around ( the earth ) ) ) ) ) ) ) ) ) ) ) . )
(ROOT (NP (NP (DT THE) (NNP MOON) (NNP DOES) (NNP NOT) (NNP ROTATE)) (: :) (S (NP (DT The) (NN moon)) (VP (VBZ completes) (NP (NP (RB exactly) (CD one) (NN rotation)) (PP (IN about) (NP (NP (PRP$ its) (NNS axis)) (PP (IN in) (NP (NP (DT the) (JJ same) (NN period)) (PP (IN of) (NP (NN time))))))) (SBAR (S (NP (PRP it)) (VP (VBZ takes) (S (VP (TO to) (VP (VB make) (NP (NP (CD one) (NN revolution)) (PP (IN around) (NP (DT the) (NN earth))))))))))))) (. .)))
THE MOON DOES NOT ROTATE: The moon completes exactly one rotation about its axis in the same period of time it takes to make one revolution around the earth.
(ROOT (S (NP (PRP It)) (VP (VBZ takes) (NP (NN earth) (CD one) (NN week)) (S (VP (TO to) (VP (VB rotate) (PP (IN on) (NP (PRP$ its) (NNS axis))) (NP (CD seven) (NNS times)))))) (. .)))