Agreed with @seanblue that this is not the best use for the ignore script – in your case you say it right but typo the answer, but in OP’s case they don’t know which is correct.
At any rate, if you do have to have an ignore script, I highly recommend the Double-Check script over the Override script, because it allows to mark a correct answer as incorrect, and allows you to immediately retype an answer instead of just marking it correct (and thus making sure you really know the answer).