17672
Steroids were analyzed , after extraction and enzymatic conjugate hydrolysis , as methyloxime - trimethylsilyl ether derivatives on gas - chromatographs coupled to quadrupole and ion - trap mass - spectrometers .
 Chemical: Steroids; Chemical: methyloxime - trimethylsilyl ether
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: Steroids; Chemical: methyloxime - trimethylsilyl ether