sentences: proton is the smallest wave in an eve
docs: electrons is smaller_than_protons. comets has solid_nucleus electrons_protons_and_neutrons is smaller_than_atoms. moons_gravity is very_weak. low_frequency_component is low_frequency_radiation. planetoid is small_planet. cold_wave is wave. acids has low_ph logic_low is electronic_signal. neutron_bomb is small_nuclear_weapon.