They are filling with sediment, their shorelines are eroding, and their water is becoming muddy.
(their water; is becoming; muddy) (their shorelines; are eroding; ) Context(their shorelines are eroding,List([32, 60))):(They; are filling; with sediment)
their shorelines are eroding,List([32, 60))
their water their shorelines They
is becoming are eroding are filling
muddy
with sediment