天呀

天 = 一 + 大 : Mnemonic symbol: an angel from heaven. Mother Teresa (ti) programmed a robot (大) to play a flute duet together with her in front of the anthill (an1). As they play their flutes (一) an angel (mnemonic symbol for 天) hears their heavenly tune and descends from heaven (天) to listen to them.

呀 = 口 + 牙 : Maud Younger (y) has an aching wisdom tooth. She attached a string to it and stands on top of the ashram (a5). At the other end of the string she attached a mandarin (口). When she throws the mandarin down the lighthouse, the string will pull out her aching wisdom tooth. It will hurt a little, so Maud is sure to say "哎呀" when the tooth is pulled.