16327
Regressions developed for Hg biomagnification in the food chain were log10 CTHg ( nanograms per gram ) = 0 . 27 x delta ( 15 ) N ( /1000 ) - 0 . 42 , R ( 2 ) = 0 . 87 , for THg and log10 CMMHg = 0 . 33 x delta ( 15 ) N ( /1000 ) - 1 . 0 , R ( 2 ) = 0 . 93 , for MMHg .
 Chemical: Hg; Chemical: ( 15 ) N; Chemical: ( 15 ) N; Chemical: MMHg
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: Hg, ( 15 ) N, ( 15 ) N, MMHg 
Answer:
 Chemical: Hg; Chemical: ( 15 ) N; Chemical: ( 15 ) N; Chemical: MMHg