73340
In different studies of the Danube Delta of Romania , from 44.6 % to 79 % of the diet was comprised by fish , led by the common carp ( " Cyprinus carpio " ) and Prussian carp ( " Carassius gibelio " ) .
 Danube Delta, Romania, common carp, Prussian carp
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
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Text: {0} 
Answer:
 Danube Delta, Romania, common carp, Prussian carp