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A novel approach , called isothermal isotope exchange ( IIE ) , was applied to varying A - and B - site lanthanum manganites , ferrites , and cobaltites in the perovskite crystal structure in order to extract accurate surface exchange coefficients ( k * ) .
 Chemical: lanthanum manganites; Chemical: ferrites; Chemical: cobaltites; Chemical: perovskite
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: lanthanum manganites; Chemical: ferrites; Chemical: cobaltites; Chemical: perovskite