2876. What characters can be added here so that each character contains a part of the previous character? a) 架 -> _ -> _ -> 終 b) 吉 -> _ -> _ -> 黒

a) 架 -> 柱 -> 素 -> 終

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

柱 CHUU, hashira - pillar, column, pole

素 SO, SU - element, naked, simple

終 SHUU, o(waru), o(eru) - end, finish

b) 吉 -> 吐 -> 埋 -> 黒

吉 KICHI, KITSU, yoshi - good luck

吐 TOU, ha(ku) - spew, vomit, give vent to

埋 MAI, u(maru), u(meru), u(moreru) - bury, be buried, filled up

黒 The "Kuro" radical - black