Pens may work in some gravity.Logical formLearned from14 sentences. A person can be a pen.Logical formLearned from14 sentences. A pen can be a pen.Logical formLearned from14 sentences. A (ballpoint pen) can be blue.Logical formLearned from14 sentences. Pens can be regular.Logical formLearned from14 sentences. A (highlighter pen) can be yellow.Logical formLearned from14 sentences. An other side may pertain-to a pen.Logical formLearned from14 sentences. A person may keep a pen.Logical formLearned from14 sentences. A pen may undergo a production.Logical formLearned from14 sentences. A female may lay_down a pen.Logical formLearned from14 sentences. An (auto pen) may pertain-to a person.Logical formLearned from14 sentences. Commentary can be under a (pen name).Logical formLearned from14 sentences. A pen can be inky.Logical formLearned from14 sentences. A pen can be heavy.Logical formLearned from14 sentences. A (pen register) may undergo an installation.Logical formLearned from14 sentences.