Trains can be frequent.Logical formLearned from25 sentences. Communication can be frequent.Logical formLearned from25 sentences. A use can be frequent.Logical formLearned from24 sentences. Rainfall can be frequent.Logical formLearned from24 sentences. Complaints can be frequent.Logical formLearned from24 sentences. Riots can be frequent.Logical formLearned from24 sentences. Days can be frequent.Logical formLearned from23 sentences. Encounters can be frequent.Logical formLearned from23 sentences. Days can be frequent.Logical formLearned from23 sentences. Delays can be frequent.Logical formLearned from22 sentences. Headaches can be frequent.Logical formLearned from22 sentences. Failures can be frequent.Logical formLearned from22 sentences. Episodes can be frequent.Logical formLearned from22 sentences. Sightings can be frequent.Logical formLearned from22 sentences. Tremors can be frequent.Logical formLearned from22 sentences.