... encounter a question, write out Q1 in the left hand margin ... after (or slightly after) a Q1, I1 or P1 is raised ... lines from the notations of Q1 or A1 in the left ... A's, mark them as Q1, Q2, Q3, or A1, A2 ... end up with something like "Q1, A1, supp, ex, Q2, A2 ...