A male may rub knuckles.Logical formLearned from22 sentences. Knuckles can be scarred.Logical formLearned from21 sentences. Knuckles can be whitening.Logical formLearned from20 sentences. Knuckles can be metallic.Logical formLearned from19 sentences. Knuckles can be bony.Logical formLearned from19 sentences. Knuckles can be pale.Logical formLearned from19 sentences. Knuckles may whiten.Logical formLearned from19 sentences. A knuckle can be on a right hand.Logical formLearned from19 sentences. Knuckles can be busted.Logical formLearned from19 sentences. A knuckle may pertain-to a right hand.Logical formLearned from19 sentences. Knuckles can be hard.Logical formLearned from18 sentences. Skin can be on knuckles.Logical formLearned from18 sentences. Knuckles may be bruised by a lady.Logical formLearned from18 sentences. Knuckles can be for a ruthlessness.Logical formLearned from18 sentences. Knuckles may be bled.Logical formLearned from17 sentences.