lon

mi lon tomo.		I'm in the house.
mi moku lon tomo.		I eat in the house.

In the first example, lon is used as the verb; in the second, it is used as a preposition. lon can be used as both a verb and a preposition.

suno li lon sewi.		The sun is in the sky.
mi telo e mi lon tomo telo.		I bathe myself in the restroom.
kili li lon poki.		The fruit is in the basket.