As soon will be seen there is a similarity in general structure between Hb9-17--50 (and Pb10-29--54) on one hand and Hb10-52--66 (respectively Ba9-13--31 and Bb3-9--18) on the other hand. After a gap (Hb9-51--58 resp Pb10-55--Pb11-105) one of these texts continues (Bb3-21--25) in parallel with Hb9-51--64 (and Pb11-201--206).
Hb9-17 Hb9-18 Hb9-19 Hb9-20 Hb9-21
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Pb10-29 Pb10-30 Pb10-31
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Hb10-50 Hb10-51 Hb10-52 Hb10-53
Ba9-13 Ba9-14 Ba9-15
Bb3-9 Bb3-10 Bb3-11