Sentence:  Matisse showed in every autumn <WSD>salon</WSD> and every independent. He was beginning to have a considerable following. Picasso, on the contrary, never in all his life has shown in any <WSD>salon</WSD>. His pictures at that time could really only be seen at 27 rue de Fleurus. 
Meaning of the word marked with <WSD> tags:  An art gallery or exhibition; especially the (Paris salon) or (autumn salon).