8322
Whereas most of the work so far had involved restoration of the existing channel , this section includes some significant engineering challenges , with completely new construction needed to bypass the housing estate in Killamarsh , built over the original line in the 1970 s , and the replacement of Norwood Tunnel with an alternative route .
 location: Killamarsh; location: Norwood Tunnel
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: Killamarsh; location: Norwood Tunnel