8086
The industrial nature of the region led to a severe pollution problem for the river , but efforts to improve the water quality and habitat have met with some success , as salmon have been reported in the river near Doncaster .
 location: Doncaster
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Doncaster