Bing Crose stayed here in room 18 to be exact on one of his trips to England; he used it as a base for a few days of fly-fishing.
Fly-fishing was a hobby of Bing Crose, he loved that sport.
mnli hypothesis: Fly-fishing was a hobby of Bing Crose, he loved that sport. premise: Bing Crose stayed here in room 18 to be exact on one of his trips to England; he used it as a base for a few days of fly-fishing.