Friends can be busy with lives.Logical formLearned from5 sentences. A summer can be busy for a person.Logical formLearned from5 sentences. A (grad student) can be busy.Logical formLearned from5 sentences. A person can be busy with teaching.Logical formLearned from5 sentences. A plan can be busy.Logical formLearned from5 sentences. A person can be busy with crap.Logical formLearned from5 sentences. Brains can be busy.Logical formLearned from5 sentences. A person can be busy with rehearsals.Logical formLearned from5 sentences. Paws can be busy.Logical formLearned from5 sentences. A sensation can be busy.Logical formLearned from5 sentences. A person can be busy with writing.Logical formLearned from5 sentences. (Phone line) can be busy.Logical formLearned from5 sentences. A busy signal can be continuous.Logical formLearned from5 sentences. A band can be busy.Logical formLearned from5 sentences. A waiter can be busy.Logical formLearned from5 sentences.