In question 2, couldn't the "or" in "Joffrey must kill Bran or Robb," also be an inclusive and/or? Does the same thing apply as with Arya and Sansa with the word "both"? I thought about the Econ and Poli Sci 101 example, the student could pick one or the other, or both. When creating the Lawgic sentences should this idea of and/or be ignored unless explicitly stated?