Complex sentence: At lunch, Lois and Brenda begin talking about the situation, and requests that Brenda remove her sunglasses, revealing a bruise over her eye, to the surprise of Lois.
Split into simpler sentences: At lunch, Lois and Brenda begin talking about the situation. Requesting that Brenda remove her sunglasses, she reveals a bruise over her eye, to the surprise of Lois.