( ( ( Day and ) night ) ( ( caused ( by ( ( the rotation ) ( of ( the earth ) ) ) ) ) . ) )
(ROOT (S (NP (NN Day) (CC and) (NN night)) (VP (VBD caused) (PP (IN by) (NP (NP (DT the) (NN rotation)) (PP (IN of) (NP (DT the) (NN earth)))))) (. .)))
Day and night caused by the rotation of the earth.
(ROOT (S (NP (EX There)) (VP (VBP are) (NP (NP (QP (JJR fewer) (IN than) (CD 24)) (NNS hours)) (PP (IN of) (NP (NP (NN daylight)) (PP (IN in) (NP (NN alaska)))))) (PP (IN during) (NP (NP (DT each) (NN day)) (PP (IN in) (NP (NNP april))))) (SBAR (IN because) (S (NP (NP (NN earth) (POS 's)) (NN rotation)) (VP (VBZ causes) (NP (DT both) (NN day) (CC and) (NN night)))))) (. .)))