Complex sentence: In one of the most famous stadiums in Athletics (Bislett) he ran 12:59 in only his second 5000 meter race, finishing 5th behind a group of experienced runners including Kenenisa Bekele and Issac Songook of Kenya.
Split into simpler sentences: In one of the most famous stadiums in Athltics (Bislett) he ran 12:59 in only his second 5000 meter race. Finishing 5th behind a group of experienced runner including Kenenisa Bekele and Issac Songook of Kenya.