A storage machine holds instructions executable by a logic machine to receive a digital representation of a spoken command. The method includes sensing motion of the woman without contacting the woman, generating a signal corresponding to the sensed motion, and analyzing the signal to detect presence of labor contractions. The transition zone has strength and ductility levels between the strength and ductility levels of the remaining portions of the first and second parts. A valve body is longitudinally movably mounted in the inlet tube adjacent to the valve fitting.