Cotton is a fiber (from the cotton plant). Flannel is a finish or weave. Hence you can have flannel wool as well as cotton flannel - i.e wool made with flannel finish or cotton made with flannel finish. Hope this helops.
A very memorable song from Joni Mitchell that featured the line They paved paradise and put up a parking lot.. This best described places I remember growing up in Bloomington, MN in my teens where numerous places were torn down, most notably a restaurant I frequented that was replaced with a Park and Ride lot.
Town Without Pity. Anyone with even a minimal familiarity of top forty songs will probably have heard Gene Pitney's 1961 hit, Town Without Pity, but very few people realize it was the theme song for one of the lesser known films in the career of actor Kirk Douglas.