(Stem cells) can be (stem cells).Logical formLearned from4 sentences. A rosette can be around a stem.Logical formLearned from4 sentences. A stem may reach some centimeters.Logical formLearned from4 sentences. A stem may be coated in hairs.Logical formLearned from4 sentences. Stems may be covered with spines.Logical formLearned from4 sentences. An (erect stem) may grow from tubers.Logical formLearned from4 sentences. A stem may pertain-to a main verb.Logical formLearned from4 sentences. (Stem cell transplantation) may be considered.Logical formLearned from4 sentences. Sheathes may bear leaves on a part of a stem.Logical formLearned from4 sentences. A tissue may pertain-to a stem.Logical formLearned from4 sentences. Inflorescences can be at ends of (stem branches).Logical formLearned from4 sentences. A stem can be grooved.Logical formLearned from4 sentences. A collar can be around a stem.Logical formLearned from4 sentences. An (erect shrub) can be with a stem.Logical formLearned from4 sentences. A (flowering stem) can be slender.Logical formLearned from4 sentences.