( This ( ( means ( there ( will ( be ( ( ( two ( high tides ) ) and ) ( ( two ( low tides ) ) ( per day ) ) ) ) ) ) ) . ) )
(ROOT (S (NP (DT This)) (VP (VBZ means) (SBAR (S (NP (EX there)) (VP (MD will) (VP (VB be) (NP (NP (CD two) (JJ high) (NNS tides)) (CC and) (NP (NP (CD two) (JJ low) (NNS tides)) (PP (IN per) (NP (NN day)))))))))) (. .)))
This means there will be two high tides and two low tides per 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)))) (. .)))