2394. Modify each of these characters with a single stroke to make three other Katakana characters each. a) コ b) ソ

コ  Katakana "Ko"

ソ  Katakana "So"

a) コ gives us;  

ヨ  Katakana "Yo" or The "Keigashira" radical - pig’s head

ユ  Katakana "Yu"

ロ  Katakana "Ro" or KOU, kuchi - mouth

b) ソ gives us;  

ワ  Katakana "Wa"

ツ  Katakana "Tsu" or The "Tsu" radical - Katakana Tsu

サ  Katakana "Sa" or The "Kusakanmuri" radical - grass