15284
During the de novo synthesis of guanine nucleotides , GMP is formed first , and it is converted to GDP by guanylate kinase .
 Chemical: guanine nucleotides; Chemical: GMP; Chemical: GDP; Chemical: guanylate
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: guanine nucleotides; Chemical: GMP; Chemical: GDP; Chemical: guanylate