imply hand_on_railing -> railing

BUR #12769 has been rejected.

create implication hand_on_railing -> railing

You cannot put your hand on a railing if there is no railing.

post #5743751 is a handrail, however handrail does not imply railing. What do we do with those?

Hmm, you are right.
I would add, however, that according to the railing wiki, railing should imply handrail.

A short permanent barrier with a handrail used for control or safety purposes for people (along walkways, bridges, stairways, balconies, the ends of train cars, etc.).

Then I propose to nuke (or make alias) the hand on railing tag in favor of the hand on handrail tag, since as I said above, railing necessarily consists of a handrail, on which the hand(s) rest.
So the problem would be solved.

I also add that handrail should only indicate the types of "railing" attached directly to the wall, because like now this tag seems to me an unnecessary overlap.
Right now handrail is full of images that should/can be tagged railing instead.

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This bulk update request has been rejected because it was not approved within 45 days.

The bulk update request #12769 (forum #224034) has been rejected by @DanbooruBot.