Floods occur when the flow of water exceeds the amount that can be contained in a river's natural banks.
(Floods; occur; T:when the flow of water exceeds the amount) (the flow of water; exceeds; the amount that can be contained in a river's natural banks) (the amount; can be contained; in a river's natural banks)
Floods the flow of water the amount
occur exceeds can be contained
T:when the flow of water exceeds the amount
the amount that can be contained in a river's natural banks
in a river's natural banks