Consider a vocabulary with the following symbols:

Occupation(p, o): Predicate. Person p has occupation o.

Customer (p1, p2): Predicate. Person p1 is a customer of person p2.

Boss(p1, p2): Predicate. Person p1 is a boss of person p2.

Doctor , Surgeon, Lawyer , Actor : Constants denoting occupations.

Emily, Joe: Constants denoting people.

Use these symbols to write the following assertions in first-order logic:

a. Emily is either a surgeon or a lawyer.

b. Joe is an actor, but he also holds another job.

c. All surgeons are doctors.

d. Joe does not have a lawyer (i.e., is not a customer of any lawyer).

e. Emily has a boss who is a lawyer.

f. There exists a lawyer all of whose customers are doctors.

g. Every surgeon has a lawyer.