Occasionally they would spot a stout-bodied fly in the apartment that had outlived the death of its peers and survived for reasons they could only guess at.
(they; would spot; a stout-bodied fly in the apartment; T:Occasionally) (the apartment; had outlived; the death of its peers) (the apartment; survived; for reasons) (reasons; could only guess; they)
they the apartment the apartment reasons
would spot had outlived survived could only guess
a stout-bodied fly in the apartment T:Occasionally
the death of its peers
for reasons
they