The text presented explains the way researchers from the University of Arizona studied how much women and men speak. In sentence 2 "Researchers from the University of Arizona placed microphones..." and sentence 3 "Then they sampled their conversation..." the process is explained by using a sequence structure. In this way, the process of placing microphones in women and men precedes the process of sampling the conversation, this relationship in time is suggested by the word "then" that connects both sentences. This means sentences 2 and 3 have a relationship of time because they describe stages that occurred at different times during research.
