derive the kana for a mora onsetted with /p/ from the kana for a mora onsetted with /h/

芸術作品: artwork, work of art, piece of art

chemical reaction / reaction, response / feedback

(honorific) a soul / a vengeful ghost, a malignant spirit / short for 御霊会 (goryōe), a kind of matsuri held to appease the spirits of the dead