4642
Muratori , however , is careful to state in his preface that the codex , though very old , and in part mutilated , may have been a copy made at Bobbio , by some of the local monk s there , from the original service book .
 Bobbio
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Bobbio