Ice can be on a knee.Logical formLearned from21 sentences. A (knee injury) can be worrisome.Logical formLearned from21 sentences. Lyrics may fall to knees.Logical formLearned from21 sentences. Knees may bleed.Logical formLearned from21 sentences. A knee may be replaced.Logical formLearned from21 sentences. A person can be on a knee.Logical formLearned from21 sentences. A knee can be in a back.Logical formLearned from21 sentences. A knee may undergo a surgery.Logical formLearned from21 sentences. A knee may pertain-to a dad.Logical formLearned from21 sentences. Some injury can be to a knee.Logical formLearned from21 sentences. A knee may pertain-to a US-city.Logical formLearned from21 sentences. A knee may pertain-to quarterback.Logical formLearned from21 sentences. A knee can be throbbing.Logical formLearned from21 sentences. Knees may pertain-to one.Logical formLearned from21 sentences. A male may recover from a (knee surgery).Logical formLearned from21 sentences.