Your task is to create an Entity-Relationship (ER) model tailored for Earnings Call Transcripts. This model should effectively address the research questions listed below: 1.What is the name of the firm and the timing of the earnings call conference? 2.Who participated in the earnings call conference, what titles do they hold, and what role do they play in the call? 3.What is the content of a presentation, question, or answer in an earnings call? 4.What characterizes a participant's linguistic style