For someone (agent muɴ-; s agent maN-) to close a cave, the opening, pantaw (loc ref -an), of a cave, especially a tomb, with a cave cover (theme).
pananglib; mananglib
Hi Limāngan ya hiyay nananglib hinan lūbu'.
As for Limāngan, he is the one who closed the cave with a cave cover.
For someone (agent) to use something, especially a large flat stone (inst i-, paN-) for a cave cover, as described above.