A stem can be naked.Logical formLearned from31 sentences. A president may place on funding of (stem cell research).Logical formLearned from31 sentences. An end may pertain-to stems.Logical formLearned from31 sentences. (Stem cells) may undergo a collection.Logical formLearned from31 sentences. A center may pertain-to a stem.Logical formLearned from31 sentences. A stem can be reddish.Logical formLearned from31 sentences. A stem can be true.Logical formLearned from30 sentences. A herb can be with stems.Logical formLearned from30 sentences. A stem may pertain-to a verb.Logical formLearned from30 sentences. A line can be constituted-of-or-filled-with (stem cells).Logical formLearned from30 sentences. A source can be constituted-of-or-filled-with embryonic (stem cells).Logical formLearned from30 sentences. Research can be into (stem cells).Logical formLearned from30 sentences. A stem can be clear.Logical formLearned from30 sentences. Colonies can be constituted-of-or-filled-with embryonic (stem cells).Logical formLearned from30 sentences. Experimentation can be on embryonic (stem cells).Logical formLearned from30 sentences.