2991. What characters can be added here so that each character contains a part of the previous character? a) 架 -> _ -> _ -> 賦 b) 雷 -> _ -> _ -> 鳴

a) 架 -> 柱 -> 責 -> 賦

架 KA, ka(keru), ka(karu) - hang, build (a bridge)

柱 CHUU, hashira - pillar, column, pole

責 SEKI, se(meru) - condemn, censure, torture

賦 FU - tribute, payment, installment

b) 雷 -> 男 -> 加 -> 鳴

雷 RAI, kaminari - thunder

男 DAN, NAN, otoko - male, man

加 KA, kuwa(eru), kuwa(waru) - add, append, join, take part

鳴 MEI, na(ku), na(ru)(rasu) - cry, sing, howl, ring