15958
We report the acquisition and interpretation of nuclear magnetic resonance ( NMR ) J - spectra at zero magnetic field for a series of benzene derivatives , demonstrating the analytical capabilities of zero - field NMR .
 Chemical: benzene
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: benzene