1. by POS,
2. prep defined with verb
3. PP, 
   in 在, in the room
   在...上, in stock
   在...里, in the students 
   for, 为, take the box for you, it is boost for boeing 对于, 
        buy it for $5.
   since since 1998, 自从,  becausing因为

4. Verb, 
5. Noun, plane, 飞机, 平面