The message
from "51" contains these words:

This post was sent as a humerous question. I'll expalin.
You know..tower crane...a tool. Tools are aften discussed on this group.
Perhaps you didn't make the connection because a tower crane is not often
used by the average or even exceptional DIYer.

It's a bit tortuous, isn't it?

--
Skipweasel
Pay no attention to that man behind the curtain.