We will spend the day picking up bits of giant ferns and other plant fragments where ancient coal swamps were once found.
(ancient coal swamps; were found; L:other plant fragments; T:once) (We; will spend; the day; picking up bits of giant ferns and other plant fragments) Context(We will spend,List([0, 13))):(We; will spend the day picking up; bits of giant ferns and other plant fragments)
We will spend,List([0, 13))
ancient coal swamps We We
were found will spend will spend the day picking up
L:other plant fragments T:once
the day picking up bits of giant ferns and other plant fragments
bits of giant ferns and other plant fragments