Complex sentence: While its most famous event is the encierro, or the running of the bulls, which happens at 8:00 am from July 7th to July 14th, the week long celebration involves many other traditional and folkloric events.
Split into simpler sentences: While its most famous event is the encierro, or the running of the bulls, which happens at 8:00 am. From July 7th to July 14th, the week long celebration involves many other traditional and folkloric events.