SimilarityRank
proton 0.838 20444
electron 0.791 9389
neutrino 0.771 41916
gamma_ray 0.768 77142
photon 0.762 18937
atom 0.757 7438
an_electron 0.721 98873
isotope 0.718 40195
hydrogen_atom 0.709 96670
cosmic_ray 0.693 60042
quark 0.674 60736
fission 0.669 73502
an_atom 0.664 91778
these_particle 0.656 95022
ion 0.640 12236
nucleus 0.637 10929
particle 0.636 4733
plutonium 0.635 35882
tritium 0.633 90971
water_molecule 0.624 62720
molecule 0.624 4870
supernova 0.619 47013
magnetic_field 0.617 15604
helium 0.615 38634
radioactivity 0.615 39280