Consider a vocabulary with the following symbols: Customer(p1, p2): Person p1 is a customer of person p2 Boss(p1, p2): Person pl is a boss of person p2 Doctor(p), Surgeon(p), Lawyer(p), Actor(p): Denote occupation Emily (p), Joe(p): Denote name, assume only one person has this name Use these symbols to write the following assertions in first-order logi a. Emily is either a surgeon or a lawyer b. All surgeons are doctors c. Joe does not have a lawyer (i.e. is not the customer of a lawyer d. Emily has a boss who is a lawyer e. There is some lawyer who only has customers that are doctors f. Every surgeon has a lawyer