S. alterniflora's major role as a food source begins after it is already dead and decomposed (see Decomposers and Consumers).
(S. alterniflora's major role as a food source; begins; T:after it is already dead) (it; is; T:already; dead) (S. alterniflora's major role as a food source; decomposed; )
S. alterniflora's major role as a food source it S. alterniflora's major role as a food source
begins is decomposed
T:after it is already dead
T:already dead