I'm not able to find textbooks solutions for practice!

How would you approach Exercise 4.6.2 in A First Course in Database systems, by Jeff Ullman 3rd edition?

I have posted the pictures but if you haven't read the book then you won't understand what they are asking. I have read the book and answered the question according to my best interpretation, I just wish I had the solutions just to ease my corcerns that I am doing everything wrong haha.

Exercises for Section 4.6 4.6.1 Convert the E/R diagram Fig. 4.32 to a relational database each of the following approaches Exercise schema, using The straight-E/R method. The object-oriented method. c) The nulls method Exercise 4.6.2 Convert the E/R diagram of Fig. 4.33 a relational database to schema, using: a) he straight-E/R method. b) The object-oriented method c) The nulls method. Exercise 4.6.3: Convert your EVR design from Exercise 4.1.7 to a relational database schema, using: a) The straight-E/R method. b) The object-oriented method. c) The nulls method. 1, ing e entity sets