A person may need pens.Logical formLearned from16 sentences. A (pen tool) may pertain-to a person.Logical formLearned from16 sentences. Pen may work.Logical formLearned from16 sentences. Pens can be constituted-of-or-filled-with paper.Logical formLearned from16 sentences. A person may get_out a pen.Logical formLearned from16 sentences. A (veto pen) may undergo a use.Logical formLearned from16 sentences. A pen can be attached.Logical formLearned from16 sentences. Strokes may pertain-to a pen.Logical formLearned from16 sentences. A (pen pal service) may pertain-to persons.Logical formLearned from16 sentences. A female may be knowned by a (pen name).Logical formLearned from16 sentences. A pen can be in hands.Logical formLearned from16 sentences. A series can be constituted-of-or-filled-with pens.Logical formLearned from15 sentences. A pen can be bold.Logical formLearned from15 sentences. Walls may pertain-to a pen.Logical formLearned from15 sentences. A female may take_up a pen.Logical formLearned from15 sentences.