A sperm may pertain-to persons.Logical formLearned from15 sentences. Sperm may be made.Logical formLearned from15 sentences. A (sperm bank) may pertain-to a US-city.Logical formLearned from15 sentences. A (sperm bank) may pertain-to the world.Logical formLearned from15 sentences. Sperm can be easy.Logical formLearned from15 sentences. (Girl babies) may arise from sperm.Logical formLearned from15 sentences. A sperm may pertain-to some man.Logical formLearned from15 sentences. Sperm may be collected.Logical formLearned from15 sentences. A sperm may enter an egg.Logical formLearned from15 sentences. (Sperm production) can be in men.Logical formLearned from15 sentences. A need can be for sperm.Logical formLearned from15 sentences. A tail may pertain-to a sperm.Logical formLearned from14 sentences. (Sperm whales) can be female.Logical formLearned from14 sentences. Sperm may undergo a maturation.Logical formLearned from14 sentences. Thousands can be constituted-of-or-filled-with sperm.Logical formLearned from14 sentences.