sombo -som-so'o- gismu

x₁ sows/plants x₂ [crop/plants] at/in x₃.

In notes:

crepu: x₁ (agent) harvests/reaps/gathers crop/product/objects x₂ from source/area x₃.
tsiju: x₁(s) is/are (a) seed(s)/spore(s) [body-part] of organism x₂ for producing offspring x₃.
somcna: c₁ is a trowel for digging c₂.