I need help writing a formula using an "Or" function. Here is what I am trying to say:

If the Potential Term field contains 1 months or 2 months or 3 months or 4 months or 5 months (all the way up to 11 months), then the Total Contract Value field should be equal to the Full 1st Year Revenue field. So far, I've come up with the statement below, but it's just not working. I need to use an Or formula because writing out all the months involved, takes me past the 1000 character limit... So instead of using the "If contains" for every single month, I am trying to use "or" to make the overall formula shorter.

Please help!!

If(Contains(${Potentials.Contract Term},'6 months'),Or('7 months'),Or('8 months'),(${Potentials.Full 1st Year Revenue}),0)))