Custom Column error

I have put together the following custom column in power query editor, and it generates a "Token ',' expected" error on it, and I cant actually see where I have went wrong with the code, show error highlights the first IN. Thanks if anyone has any advice to help!

  SWITCH(TRUE(),
        [priority_cd] IN {"A_1HRE", "B_6HRE"} 
            AND [class] IN {"3", "4", "8"} 
            AND ISNULL([need_cat], "AAA") <> "GAR" 
            AND [ord_status] <> "CAN" 
            AND ISNULL([ord_stage], "AAA") NOT IN {"CNA", "CNI", "CTR", "CWA", "DUP", "TRC"}, "Emergency",
        [priority_cd] NOT IN {"A_1HRE", "B_6HRE"} 
            AND [class] IN {"3", "4", "8"} 
            AND ISNULL([need_cat], "AAA") <> "GAR" 
            AND [ord_status] <> "CAN" 
            AND ISNULL([ord_stage], "AAA") NOT IN {"CNA", "CNI", "CTR", "CWA", "DUP", "TRC"}, "NonEmergency",
        [class] NOT IN {"3", "4", "8"} 
            OR ISNULL([need_cat], "AAA") = "GAR" 
            OR [ord_status] = "CAN" 
            OR ISNULL([ord_stage], "AAA") IN {"CNA", "CNI", "CTR", "CWA", "DUP", "TRC"}, "Other"
    )