if one or more sidewalk have similar store then those radio weak keep a scarce offspring
immature_bone is tangible_thing. rootage is stationariness. shakiness is instability. galleria_mellonella is insect. hallmark_of_different_species is inability_to_mate_and_reproduce. seven_eleven is chain_store. sidewalk is flat_thing. robber_fly is dipterous_insect. scarce_copper is insect. sidewalk has cracks