2683
The Martinez beavers built a dam 30 feet wide and at one time six feet high , and chewed through half the willows and other creekside landscaping the city planted as part of its $ 9.7 million 1999 flood-improvement project .
 location: Martinez
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: Martinez