24223
LINE - 1 , MGMT , and its hot CpG site - specific methylation were negatively correlated with urinary 1 - hydroxypyrene levels ( r = - 0 . 329 , p < 0 . 001 ; r = - 0 . 164 , p = 0 . 049 and r = - 0 . 176 , p = 0 . 034 , respectively ) .
 Chemical: CpG; Chemical: 1 - hydroxypyrene
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: CpG; Chemical: 1 - hydroxypyrene