A span can be parallel.Logical formLearned from21 sentences. A span may pertain-to a century.Logical formLearned from21 sentences. An (attention span) may pertain-to the world.Logical formLearned from21 sentences. An (attention span) can be seconds.Logical formLearned from21 sentences. A (life span) can be reduced.Logical formLearned from21 sentences. A (life span) can be anticipated.Logical formLearned from21 sentences. A span can be to a firm.Logical formLearned from21 sentences. A course may pertain-to a (life span).Logical formLearned from20 sentences. An (attention span) may pertain-to a public.Logical formLearned from20 sentences. An (attention span) can be minutes.Logical formLearned from20 sentences. (Time spans) can be short.Logical formLearned from20 sentences. A (wing span) may pertain-to a male.Logical formLearned from20 sentences. A (life span) can be constituted-of-or-filled-with some hours.Logical formLearned from20 sentences. A person may have an (attention span) of a goldfish.Logical formLearned from20 sentences. A span can be famous.Logical formLearned from20 sentences.