Context: His heart grew weary at the thought . It was a new reaction to a painful memory . Vader wondered if this was how Obi - Wan had felt when they fought on Mustafar . Anakin promptly buried the thought as he took control of the battle ; he did n't really want to know .

Question: Who might Obi - Wan be to him ?
Options:
0. Subordinate
1. None of the above choices .
2. Friend
3. Stranger
Answer: 2

Question: Who is Anakin ?
Options:
0. Darth Maul
1. Darth Vadar
2. None of the above choices .
3. Obi Wan
Answer: 1

Question: Who might Obi - Wan be to him ?
Options:
0. Foe
1. None of the above choices .
2. Subordinate
3. Stranger
Answer: 0