Write the SQL command to add SUBJECT to TUTOR. The only values allowed for SUBJECT will be Reading, Math, and ESL.

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TUTOR (TutorlD, CertDate, Status) MATCH HISTORY (MatchID, TutorlD, StudentID, StartDate, EndDate) TutorlD CertDate Status 1/05/2008 Active 1/05/2008 Temp Stop 1/05/2008 Dropped 5/22/2008 Active 100 MatchID TutorID StudentID StartDate EndDate 101 3000 1/10/2008 1 100 102 103 3001 1/15/2008 3002 2/10/2008 3003 5/28/2008 2 101 5/15/2008 5/22/2008 Active 5/22/2008 Temp Stop 5/22/2008 Active 104 3 102 3/01/2008 105 106 106 103 3004 6/01/2008 6/15/2008 STUDENT (StudentID, Read) 3005 6/01/2008 3006 6/01/2008 6 104 6/28/2008 7 104 StudentID Read 3000 2.3 3001 5.6 3002 1.3 TUTOR REPORT (MatchID, Month, Hours, Lessons) 3003 3.3 MatchID Month Hours Lessons 3004 2.7 6/08 8. 4 3005 4.8 4 6/08 8. 6 3006 7.8 5 6/08 4 4 3007 1.5 4 7/08 10 7/08 4