29000
A third PPARGC1A variant ( rs2970852 ) modified the effects of metformin on triacylglycerol levels ( p interaction = 0 . 04 ; p = 0 . 0001 for association of SNP with triacylglycerol concentrations in metformin - treated participants ) .
 Chemical: metformin; Chemical: triacylglycerol; Chemical: triacylglycerol; Chemical: metformin
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: metformin, triacylglycerol, triacylglycerol, metformin 
Answer:
 Chemical: metformin; Chemical: triacylglycerol; Chemical: triacylglycerol; Chemical: metformin