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Annette Matthews' kindergarten class takes a running tour of the playground Osborne Elementary in Sewickley on Aug. 24, 2015. (Andrew Rush/Post-Gazette)

Annette Matthews’ kindergarten class takes a running tour of the playground Osborne Elementary in Sewickley on Aug. 24, 2015. (Andrew Rush/Post-Gazette)

Annette Matthews’ kindergarten class takes a running tour of the playground Osborne Elementary in Sewickley on Aug. 24, 2015. (Andrew Rush/Post-Gazette)