(Stem cell research) can be at a stage.Logical formLearned from11 sentences. Research can be into adult (stem cells).Logical formLearned from10 sentences. A (world leader) can be in (stem cell research).Logical formLearned from10 sentences. Stems may root at nodes.Logical formLearned from10 sentences. A stem can be wiry.Logical formLearned from10 sentences. Stems can be curved.Logical formLearned from10 sentences. A mat can be constituted-of-or-filled-with stems.Logical formLearned from10 sentences. A stem can be slim.Logical formLearned from10 sentences. Stems can be grayish.Logical formLearned from10 sentences. A herb can be with an (erect stem).Logical formLearned from10 sentences. A stem may pertain-to a river.Logical formLearned from10 sentences. Stems can be prostrate.Logical formLearned from10 sentences. A (stem cell) can be multipotent.Logical formLearned from10 sentences. A stem can be slender.Logical formLearned from10 sentences. Gills may have an attachment to a stem.Logical formLearned from10 sentences.