5470
To investigate these questions , we quantified variation on a fine geographical scale analysing morphological ( shell ) and genetic data sets coupled with environmental data in the land snail Murella muralis , endemic to the Mediterranean island of Sicily .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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