Cars may run on hydrogen.Logical formLearned from85 sentences. A (hydrogen tank) can be liquid.Logical formLearned from79 sentences. Hydrogen may undergo storage.Logical formLearned from78 sentences. Levels can be constituted-of-or-filled-with (hydrogen sulfide).Logical formLearned from74 sentences. Isotopes can be constituted-of-or-filled-with hydrogen.Logical formLearned from71 sentences. Hydrogen may undergo a development.Logical formLearned from71 sentences. Hydrogen may undergo concentrations.Logical formLearned from71 sentences. A (hydrogen bomb) can be soviet.Logical formLearned from71 sentences. A radioactive isotope can be constituted-of-or-filled-with hydrogen.Logical formLearned from65 sentences. Atoms can be constituted-of-or-filled-with hydrogen.Logical formLearned from63 sentences. Clouds can be constituted-of-or-filled-with (hydrogen gas).Logical formLearned from61 sentences. A hydrogen can be flammable.Logical formLearned from60 sentences. (Hydrogen ions) may undergo concentration.Logical formLearned from60 sentences. A father may pertain-to a (hydrogen bomb).Logical formLearned from59 sentences. Part may pertain-to a hydrogen.Logical formLearned from59 sentences.