<human>: Objective: How to sand the edges of the wood.

Which of the following solutions is more sound in terms of naive physics reasoning?

OPTIONS:
- Using a belt sander, place the edges on the sander until all edges are smooth.
- Using a rough edge of a sponge, place the edges on the rough edge until all edges are smooth.
<bot>: Using a belt sander, place the edges on the sander until all edges are smooth.