A person may post on facebook.Logical formLearned from17 sentences. A (facebook group) may pertain-to a male.Logical formLearned from17 sentences. A person may check facebook.Logical formLearned from17 sentences. A (facebook account) may pertain-to a male.Logical formLearned from17 sentences. A facebook may pertain-to someone.Logical formLearned from16 sentences. A male may add a person on facebook.Logical formLearned from16 sentences. A person may log into facebook.Logical formLearned from16 sentences. Photos can be on facebook.Logical formLearned from16 sentences. A person may sign_up for facebook.Logical formLearned from15 sentences. A person may look on facebook.Logical formLearned from15 sentences. A (facebook friend) may pertain-to a person.Logical formLearned from15 sentences. A person may go to a facebook.Logical formLearned from15 sentences. Some friends can be on facebook.Logical formLearned from15 sentences. (Facebook messages) may pertain-to a person.Logical formLearned from15 sentences. A person may make a facebook.Logical formLearned from14 sentences.