I am trying to create merge fields to show the correct terms on a Word contract.

{IF {TERM} = "1 Year" "one (1)" "{IF {TERM} = "3 Year" "three (3)" "{IF {TERM} = "5 Year" "five (5)" "}"}"}

I keep getting this message when it merges:
Error! Unknown op code for conditional

Any suggestions?

Thank you in advance.