cellular telescope is a sink of matter for room inactivity
refracting_telescope is optical_telescope. refracting_telescope is not optical_telescope. galilean_telescope is not refracting_telescope. optical_telescope is astronomical_telescope. astronomical_telescope is not telescope. reflecting_telescope is not optical_telescope. reflecting_telescope is optical_telescope. solar_telescope is not telescope. optical_telescope is not astronomical_telescope. intersegmental_membrane_of_lung is not solid_animal_matter.