17129
Our studies established that apart from the increased level of iron and zinc in transgenic seeds , the nutritional quality of both the brown and milled rice grains from the transgenic line was substantially equivalent to that of the non - transgenic rice plants .
 Chemical: iron; Chemical: zinc
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: iron, zinc 
Answer:
 Chemical: iron; Chemical: zinc