Sharp arrow-grass canes, bilāu, are used; they are placed in the ground along the path of a wild pig at an angle, facing the pig as it comes down a trail.
2
For someone (agent muɴ-) to plant ground spears (theme) for a wild pig (loc ref -an), as described above.
For someone (agent) to use a sharp arrow-grass cane (inst i-, puɴ-) for a ground spear, as described above.