Because tides tend to be high at the new and full moons and lower at the crescents, this can help you predict the extent of their rise and fall.
(tides; tend; to be high at the new and full moons and lower at the crescents) (tides; to be; high at the new and full moons and lower; L:at the crescents) (this; can help; you predict the extent of their rise and fall) Context(this can help,List([84, 97))):(you; predict; the extent of their rise and fall)
this can help,List([84, 97))
tides tides this you
tend to be can help predict
to be high at the new and full moons and lower at the crescents
high at the new and full moons and lower L:at the crescents
you predict the extent of their rise and fall
the extent of their rise and fall