(Stem cells) may be extracted from embryos.Logical formLearned from34 sentences. Scientists may overcome a problem of (tissue rejection) by using (stem cells).Logical formLearned from34 sentences. A stem can be constituted-of-or-filled-with beer.Logical formLearned from34 sentences. (Stem cells) may be extracted from human embryos.Logical formLearned from34 sentences. (Stem cells) may divide.Logical formLearned from34 sentences. (Stem cells) may undergo a use.Logical formLearned from34 sentences. Research can be on (stem cells).Logical formLearned from34 sentences. Leaves can be on a stem.Logical formLearned from33 sentences. A stem can be hairless.Logical formLearned from33 sentences. A stem can be glandular.Logical formLearned from33 sentences. Stems may pertain-to plants.Logical formLearned from33 sentences. (Stem cells) may undergo an infusion.Logical formLearned from33 sentences. Director may pertain-to a (stem cell program).Logical formLearned from33 sentences. (Stem cells) may undergo a discovery.Logical formLearned from33 sentences. Stems can be stout.Logical formLearned from33 sentences.