The high tide is higher and low tide is lower than the average, and spring tides occur twice a month at the times of both new moon and full moon .
(The high tide; is; higher) (low tide; is; lower than the average) (spring tides; occur; T:twice a month; T:at the times of both new moon and full moon)
The high tide low tide spring tides
is is occur
higher
lower than the average
T:twice a month T:at the times of both new moon and full moon