a renewable consumers is a mean of artificial bicycle
mobile_artificial_pollution_source is tangible_thing. mobile_artificial_pollution_source is not tangible_thing. bicycle is not environmentally_friendly_mode_of_trasportation. bicycles is environmentally_friendly_means_of_transportation. bicycle is user_powered_device. laundry_detergent is artificial_substance. artificial_christmas_tree is consumer_durable. bicycle is environmentally_friendly_mode_of_trasportation. bicycles is not environmentally_friendly_means_of_transportation. artificial_christmas_tree is not consumer_durable.