Once I used a broom handle to drop my ferns into the hole for the winter, retrieving them the same way.
(I; used; a broom; handle to drop my ferns into the hole for the winter; T:Once) Context(I used,List([5, 11))):(I; used a broom to drop; my ferns; into the hole; T:for the winter)
I used,List([5, 11))
I I
used used a broom to drop
a broom handle to drop my ferns into the hole for the winter T:Once
my ferns into the hole T:for the winter