A (sperm protein) can be at a heart of a (fertilization process).Logical formLearned from4 sentences. A sperm can be asian.Logical formLearned from4 sentences. A (sperm count) may drop.Logical formLearned from4 sentences. A sperm can be mixed.Logical formLearned from4 sentences. A man may make an amount of sperm.Logical formLearned from4 sentences. (Sperm counts) can be in males.Logical formLearned from4 sentences. A sperm can be milky.Logical formLearned from4 sentences. A fall can be in (sperm counts).Logical formLearned from4 sentences. A father may contribute sperm on an one-night-stand.Logical formLearned from4 sentences. A sperm may determine sex.Logical formLearned from4 sentences. A sperm can be in a fluid.Logical formLearned from4 sentences. Sperm may be produced in an antheridium.Logical formLearned from4 sentences. A sperm can be rare.Logical formLearned from4 sentences. An effect can be on sperm.Logical formLearned from4 sentences. A barrier can be between a sperm.Logical formLearned from4 sentences.