3430
The county lies amidst the Ridge-and-Valley Appalachians , which are characterized by long , narrow ridges , oriented northeast-to-southwest , alternating with similarly-shaped valleys .
 location: Ridge-and-Valley Appalachians
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Ridge-and-Valley Appalachians 
Answer:
 location: Ridge-and-Valley Appalachians