A (time span) may pertain-to observations.Logical formLearned from5 sentences. An (attention span) may pertain-to students.Logical formLearned from5 sentences. A span may pertain-to a cycle.Logical formLearned from5 sentences. A (time span) may pertain-to a study.Logical formLearned from5 sentences. A span can be between a month.Logical formLearned from5 sentences. A span can be constituted-of-or-filled-with some millennias.Logical formLearned from5 sentences. An (age span) can be adult.Logical formLearned from5 sentences. A span may pertain-to a collection.Logical formLearned from5 sentences. A span may pertain-to decades.Logical formLearned from5 sentences. A percent may pertain-to a (life span).Logical formLearned from5 sentences. Human development can be across a (life span).Logical formLearned from5 sentences. A span may pertain-to an experience.Logical formLearned from5 sentences. A (wing span) can be constituted-of-or-filled-with some mms.Logical formLearned from5 sentences. A condition may pertain-to a span.Logical formLearned from5 sentences. A (time span) can be constituted-of-or-filled-with years.Logical formLearned from5 sentences.