NO ()
• indicates possession
roughly qual to " 's ".

• indicates loaction when used with UE, SHITA, YOKO, NAKA, SOBA, MAE, etc.

e.g.
• Watashi no hon.
(My book.
Lit. Me 's book = Book that belongs to me)

• Eki no yoko no hon'ya.
(The bookstore in front of the train station.
Lit. Train station's in front of's book store.)

DE (で)
to indicate where an action/occassion/situation takes place
roughly equal to "at" or "in".

e.g.
Mainichi, asagohan wa ie de tabemasu.
(Everyday breakfast is eaten at home.)

Kinou gakko de konsaato ga arimashita.
(Yesterday, there was a concert in school.)

NI (に)
used with words that specify a time in which an action occurs
roughly equal to "at".

e.g
Ashita no kurasu wa hachiji ni owarimasu.