Only the cap of the acorn can be found since the squirrels have carried off the bottom nuts for winter.
(Only the cap of the acorn; can be found; T:since the squirrels have carried off the bottom nuts for winter) (the squirrels; have carried off; the bottom nuts; T:for winter)
Only the cap of the acorn the squirrels
can be found have carried off
T:since the squirrels have carried off the bottom nuts for winter
the bottom nuts T:for winter