Presence can be in civil aircraft.Logical formLearned from18 sentences. Presence can be in a series.Logical formLearned from18 sentences. A (presence information) may pertain-to a user.Logical formLearned from18 sentences. Presence may pertain-to a trait.Logical formLearned from18 sentences. Presence may pertain-to a parent.Logical formLearned from18 sentences. Social presence may undergo a perception.Logical formLearned from18 sentences. Presence may pertain-to insurgents.Logical formLearned from18 sentences. A (stage presence) can be magnetic.Logical formLearned from18 sentences. Presence may pertain-to a star.Logical formLearned from18 sentences. An advantage may pertain-to presence.Logical formLearned from18 sentences. A (military presence) may end.Logical formLearned from18 sentences. Presence may cause problems.Logical formLearned from18 sentences. A (military presence) can be large-scale.Logical formLearned from18 sentences. Presence may pose a threat.Logical formLearned from18 sentences. Presence can be dense.Logical formLearned from18 sentences.