A career counseling firm sends interviewers to a college to interview students. Among the questions the interviewers ask are the time they spend on self-study, the monthly fee paid for online coaching, and whether they are going to work part time. Here are the responses for three students as compiled by the interviewers: Student 1: 2 hours, \(\$ 100\), Yes; Student 2: No, Not thinking as yet, Not thought of; Student 3: 210 minutes, £60, No.

Create a clean version of these data that can be used for further statistical analysis.