教儀

教 = 孝 + 攵 : Joan of Arc joined an apocalyptic religious sect that taught her to dig her own grave. Wearing a mourning veil, she breaks the floor of the aorta's bathroom open using a sledgehammer.

仪 = 义 + 亻 : Justitia (义) prepared a new apparatus (仪), an electric balance, and asks Maud Younger (y) and Rosa Luxemburg (亻) to help her test it just inside the space station's entrance (Ø2). Puzzled she finds that she is not able to weigh the two women in zero gravity.