For someone (agent muɴ-) to enlarge a hole, a trench (patient -on), with a suitable instrument (inst i-, puɴ-), as to enlarge a peg hole, a trench-obstruction, lotang.
Dāyah Oy'oy an munyadyay hinan pantaw di lūbu' ti na'ullīpit.
There is Oy'oy enlarging the doorway of the cave because it is narrow (to pass through).