A (time span) can be evolutionary.Logical formLearned from4 sentences. Relation can be to a span.Logical formLearned from4 sentences. A (life span) can be about some years.Logical formLearned from4 sentences. A span can be constituted-of-or-filled-with some kilometres.Logical formLearned from4 sentences. A span may pertain-to a building.Logical formLearned from4 sentences. A (span wing) may employ struts.Logical formLearned from4 sentences. A (span wing) may be supported by v-struts.Logical formLearned from4 sentences. (Span ailerons) can be short.Logical formLearned from4 sentences. A (span wing) can be a design.Logical formLearned from4 sentences. A (time span) can be narrow.Logical formLearned from4 sentences. A (span wing) may be supported by struts.Logical formLearned from4 sentences. Wings may have a span.Logical formLearned from4 sentences. A (span wing) may pertain-to an aircraft.Logical formLearned from4 sentences. A span may be replaced.Logical formLearned from4 sentences. (Attention spans) may get shorter.Logical formLearned from4 sentences.