Neglect, Sparse
A coat rack will turn into a bundle of sticks if you neglect it. When you neglect a coat rack, the weight from the coats will pull all of the arms off, leaving it as a sparse stick.
Picture this sparse, neglected coat rack. All of its arms and the coats that were on it have fallen off and are in a big pile on the ground.
そ, しょ
うと, まば
None
You go up to the neglected coat rack and try to make things right by cleaning it with soap (そ). But no matter how much you scrub, it won't get clean, the arms won't go back on.
If you neglect something for too long, not even a good soap scrub will bring it back. That goes for humans too. Take care of yourselves. Use soap.