Adult (stem cells) may have potential.Logical formLearned from8 sentences. A hearing can be on (stem cell research).Logical formLearned from8 sentences. A bind can be on (stem cell research).Logical formLearned from8 sentences. Persons may find (stem cells) from fetuses.Logical formLearned from8 sentences. A person may cut_off a stem.Logical formLearned from8 sentences. (Stem cells) can be differentiated.Logical formLearned from8 sentences. Leaves may join a stem.Logical formLearned from8 sentences. (Stem cells) can be immortal.Logical formLearned from8 sentences. Stems may be trimmed.Logical formLearned from8 sentences. A policy can be on (stem cell research).Logical formLearned from8 sentences. Ethical issues may be raised about (stem cell research).Logical formLearned from8 sentences. Stems can be specialized.Logical formLearned from8 sentences. (Stem cell research) can be important.Logical formLearned from8 sentences. (Stem cell research) can be on embryos.Logical formLearned from8 sentences. A leaf may join a stem.Logical formLearned from8 sentences.