I've been looking for this on the web but can't find my specific doubt.
I just read the Genki 2 chapter about volitional + と思っています to say you are planning on doing something. The book is pretty clear that this grammar can be used ONLY to express our own opinions or intentions and not other's.
But right after the lesson, the first exercise says: "Describe what each person is planning to do" and the example follows:
The book just said is used for our own intentions but then the example is trying to tell us that another person is intending to do as if we know other person intention.
So, can this grammar be used to express other people's intention? Thank you beforehand.