po

1. under, beneath (movement, position)
2. beside, near, along (movement, position)
3. expresses the direction of movement
4. after, following a certain time period, event; after the disappearance or loss of
5. expresses gradual progression; one after another
6. until, up to a certain time
7. around, throughout the whole of
8. used to express division into equal parts
9. expresses the manner of an action

jis

he, it (third-person masculine singular pronoun)

nuo

1. (away) from, off, out of (movement or position away from; separation from)
2. from; since; due to (indicates the origin, start or cause)
3. for, of; against (indicates purpose)
4. from, on behalf of