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Novel chiral ferrocenylpyrazolo [ 1 , 5 - a ] [ 1 , 4 ] diazepin - 4 - one derivatives - Synthesis , characterization and inhibition against lung cancer cells .
 Chemical: ferrocenylpyrazolo [ 1 , 5 - a ] [ 1 , 4 ] diazepin - 4 - one
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: ferrocenylpyrazolo [ 1 , 5 - a ] [ 1 , 4 ] diazepin - 4 - one