12161
There was then a 10 - day water substitution phase , or PCP withdrawal , that occurred during the mid - follicular phase ( days 7 - 11 ) or the late luteal phase ( days 24 - 28 ) of the menstrual cycle .
 Chemical: PCP
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: PCP