The present invention provides always stably sampling a high quality image irrespective of the displacement of a subject, with a simpler arrangement. The invention also relates to methods of obtaining said chewing gum. A link arm is in physical communication with the brake cable. The HMC defines a bridge port within each CPC that supports at least one of the virtual servers. The filter medium of the gas filter unit removes chemical components from air and gas exhausted from the sewer pipe, thereby improving the odor of such exhausted gases.