Can one say:

1-John and Joe are not my friends. Other people are.

instead of:

2-John and Joe are not my friends. Certain other people are.


-----------------------------------

Can one say:

3-He doesn't want to go to war. He wants to send other people.

instead of:

4-He doesn't want to go to war. He wants to send some other people

Gratefully,
Navi.