( ( The ( ( moon and ) sun ) ) ( ( ( cause ( the tides ) ) ( on Earth ) ) . ) )
(ROOT (S (NP (DT The) (NN moon) (CC and) (NN sun)) (VP (VBP cause) (NP (DT the) (NNS tides)) (PP (IN on) (NP (NNP Earth)))) (. .)))
The moon and sun cause the tides on Earth.
(ROOT (S (NP (NNP Spring) (NNS tides)) (VP (VBP are) (VP (VBN created) (SBAR (WHADVP (WRB when)) (S (NP (NP (DT the) (NN sun)) (CC and) (NP (NP (NN moon) (POS 's)) (NNS tides))) (VP (VBP match)))))) (. .)))