Complex sentence: Their gift-giving feast, potlatch, is a highly complex event where people gather in order to commemorate special events, such asthe raising of a Totem pole or the appointment or election of a new chief.
Split into simpler sentences: Their gift-giving feast, potlatch, is a highly complex event where people gather in order to commemorate a special events. These events, such as, the raising of a Totem pole or the appointment or election of a new chief.