婆媳

婆 = 女 + 波 : Bessie Coleman (女) is Pinocchio's (p) mother-in-law(婆). As such she thinks its her obligation to teach him how to ride the waves (波) in the observatory's kitchen (o2).

媳 = 女 + 息 : Marie Curie (xi) has recently become Bessie Coleman's (女) daughter-in-law (媳), and Bessie is frequently breathing fire (息) at Marie when she comes back home and enters the space station late (Ø2).