<human>: Here is a goal: To punch holes on a leather piece in regular intervals.

How would you accomplish this goal?

OPTIONS:
- Use a ruler and mark on the leather where the holes should be in regular intervals. Punch the hole over the marks.
- Use a ruler and mark on the ruler where the holes should be in regular intervals. Punch the hole over the marks.
<bot>: Use a ruler and mark on the leather where the holes should be in regular intervals. Punch the hole over the marks.