A person may collapse onto knees.Logical formLearned from14 sentences. Knees can be to a body.Logical formLearned from14 sentences. (Knee socks) can be tacky.Logical formLearned from14 sentences. A male may lean on knees.Logical formLearned from14 sentences. A female may stay on knees.Logical formLearned from14 sentences. A (knee length skirt) can be black.Logical formLearned from14 sentences. Strength can be in a knee.Logical formLearned from14 sentences. A male may see a male on knees.Logical formLearned from14 sentences. A knee may give a person problems.Logical formLearned from14 sentences. A person may pull a knee.Logical formLearned from14 sentences. A male may bring_up a knee.Logical formLearned from14 sentences. A male may sit with knees.Logical formLearned from14 sentences. Jeans can be around knees.Logical formLearned from14 sentences. Knees may undergo a contemplation.Logical formLearned from14 sentences. A male may bend at knees.Logical formLearned from14 sentences.