An outline may pertain-to knuckles.Logical formLearned from5 sentences. Tattoos can be on knuckles.Logical formLearned from5 sentences. A majority may pertain-to a knuckle.Logical formLearned from5 sentences. Knuckles can be bruised.Logical formLearned from5 sentences. A knuckle can be on a hand.Logical formLearned from5 sentences. Blood can be on knuckles.Logical formLearned from5 sentences. Knuckles may be connected to bone.Logical formLearned from5 sentences. A sound may pertain-to knuckles.Logical formLearned from5 sentences. Fingers may brush over knuckles.Logical formLearned from5 sentences. Knuckles may be scraped.Logical formLearned from5 sentences. Knuckles can be gloved.Logical formLearned from5 sentences. A (knuckle bump) can be playful.Logical formLearned from5 sentences. A female may raise knuckles to lips.Logical formLearned from5 sentences. A (knuckle bump) may pertain-to a US-president.Logical formLearned from5 sentences. Skin can be around knuckles.Logical formLearned from5 sentences.