An immune system may attack cells.Logical formLearned from49 sentences. A cell can be a cell.Logical formLearned from49 sentences. Access can be to (cell phones).Logical formLearned from49 sentences. (Cell phone records) may pertain-to a male.Logical formLearned from49 sentences. (Brain cells) may undergo a degeneration.Logical formLearned from49 sentences. Cells may undergo an infiltration.Logical formLearned from49 sentences. (Sleeper cells) can be constituted-of-or-filled-with terrorists.Logical formLearned from49 sentences. A (cell phone) can be simple.Logical formLearned from49 sentences. A cell can be synthetic.Logical formLearned from49 sentences. Cells may pertain-to a plant.Logical formLearned from48 sentences. A male may be placed in a cell.Logical formLearned from48 sentences. Antigen may present cells.Logical formLearned from48 sentences. (Tumor cells) can be malignant.Logical formLearned from48 sentences. Cells may undergo a turnover.Logical formLearned from48 sentences. A role may pertain-to cells.Logical formLearned from48 sentences.