Suppose your dataset has a variable, X1, that was derived from a multiple-choice question with response options coded 1, 2, 3, 4, and 5. And suppose that the response option coded 4 is the correct response. What SPSS syntax would you use to derived a right-wrong recoded variable, named X1rw, that takes the value 1 for respondents who answered the question correctly and 0 for those who answered incorrectly?