46449
In 2011 , researchers found that in streams and rivers in the Iberian Peninsula , juvenile largemouth bass were able to demonstrate trophic plasticity , meaning that they were able to adjust their feeding habits to obtain the necessary amount of energy needed to survive .
 location: Iberian Peninsula
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Iberian Peninsula 
Answer:
 location: Iberian Peninsula