A product can be friendly.Logical formLearned from21 sentences. Ribbings can be friendly.Logical formLearned from21 sentences. Environment can be friendly.Logical formLearned from21 sentences. A bird can be friendly.Logical formLearned from21 sentences. An editor can be friendly.Logical formLearned from21 sentences. A signal can be friendly.Logical formLearned from21 sentences. A personal relationship can be friendly.Logical formLearned from21 sentences. A couple can be friendly.Logical formLearned from21 sentences. A buyout can be friendly.Logical formLearned from21 sentences. A (telephone conversation) can be friendly.Logical formLearned from21 sentences. A sport can be friendly.Logical formLearned from21 sentences. Result can be from a friendly match.Logical formLearned from21 sentences. Products can be friendly.Logical formLearned from20 sentences. Biofuels can be friendly.Logical formLearned from20 sentences. A friendly game can be international.Logical formLearned from20 sentences.