I have a city guide website covering bars, restaurants and clubs. Each of these venues have their own subpage on my website like:
For all venues I have copied the description from the venues' own website and mixed it in with my own content. Typically I've grabbed 200-300 words covering the basic description.
Since only parts of the page is a duplicate (roughly 50%) would I use the canonical tag?And what happens when the website I'm pointing to changes their content? Then it is no longer a duplicate.