A (cast iron cylinder) may ensure a span.Logical formLearned from6 sentences. A south side may pertain-to a span.Logical formLearned from6 sentences. Kids may have an (attention span).Logical formLearned from6 sentences. A span can be constituted-of-or-filled-with human history.Logical formLearned from6 sentences. A (memory span) can be short-term.Logical formLearned from6 sentences. An angle may change within a span of a hour.Logical formLearned from6 sentences. A span may pertain-to a loan.Logical formLearned from6 sentences. Increases can be in (life span).Logical formLearned from6 sentences. (Attention spans) may be distracted by bells.Logical formLearned from6 sentences. A span may die.Logical formLearned from6 sentences. A span can be continuous.Logical formLearned from6 sentences. (Life span) may undergo a shortening.Logical formLearned from6 sentences. An (attention span) may pertain-to a company.Logical formLearned from6 sentences. Users may have (attention spans).Logical formLearned from6 sentences. An (attention span) may run_out.Logical formLearned from6 sentences.