It is only an acre, but an acre can support many trees and each tree can produce as many as 20 bushels of apples a year.
(It; is; only an acre) (an acre; can support; many trees and each tree can produce as many as 20 bushels of apples a year) (each tree; can produce; as many as 20 bushels of apples a year)
It an acre each tree
is can support can produce
only an acre
many trees and each tree can produce as many as 20 bushels of apples a year
as many as 20 bushels of apples a year