23041
The observed differences in data from starlings and quail could be a result of phylogeny , genetic drift from founder populations , or differences in reproductive seasonality in addition to or instead of arising from domestication or use of artificially changing photoperiods .
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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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