( ( Since ( there ( are ( two bulges ) ) ) ) ( , ( there ( ( are ( ( ( two ( high tides ) ) and ) ( ( two ( low tides ) ) ( each day ) ) ) ) . ) ) ) )
(ROOT (S (SBAR (IN Since) (S (NP (EX there)) (VP (VBP are) (NP (CD two) (NNS bulges))))) (, ,) (NP (EX there)) (VP (VBP are) (NP (NP (CD two) (JJ high) (NNS tides)) (CC and) (NP (NP (CD two) (JJ low) (NNS tides)) (NP (DT each) (NN day))))) (. .)))
Since there are two bulges, there are two high tides and two low tides each day.
(ROOT (S (NP (NP (CD Two) (NN low)) (CC and) (NP (JJ high) (NNS tides))) (VP (VBP occur) (PP (IN per) (NP (NN day)))) (. .)))