person A: My dog disappeared while I was away at college.
person B: That's so sad_comma_ I'm so sorry you had to go through that. How did it happen?
person A: My mother was walking her in a park and the dog fell down a cliff.  She was never found or recovered.
person B: My goodness_comma_ that sounds like a tragedy. I'm sure she was a great dog friend of yours.
person A: Yes_comma_ I loved her a lot.  It took a long time to get over but it was quite a long time ago at this point.