Waiters can be friendly.Logical formLearned from48 sentences. A challenge can be friendly.Logical formLearned from48 sentences. Volunteers can be friendly.Logical formLearned from48 sentences. Spirits can be friendly.Logical formLearned from48 sentences. A (working environment) can be friendly.Logical formLearned from48 sentences. Air can be friendly.Logical formLearned from48 sentences. Friendly match can be against a country.Logical formLearned from47 sentences. A teasing can be friendly.Logical formLearned from47 sentences. A critic can be friendly.Logical formLearned from47 sentences. Pets can be friendly.Logical formLearned from47 sentences. A battle can be friendly.Logical formLearned from47 sentences. Offices can be friendly.Logical formLearned from47 sentences. A slap can be friendly.Logical formLearned from47 sentences. Soldiers can be friendly.Logical formLearned from47 sentences. Tyrants can be friendly.Logical formLearned from47 sentences.