setting value of one cell based on another cell's value

Hello

quick query about an if query forumla

for the attached sample sheet

i want to set row O based on the value i input into row N.

So when i put into row N values 4 or 5, then positive will appear in row O

and vice versa for values 1,2 and 3 in row N but only to produce row

Thanks ,kind Regards