14777
The Canada - wide standards for petroleum hydrocarbons in soils regulate petroleum hydrocarbons based on four distillate ranges : F1 ( C6 - C10 ) , F2 ( > C10 - C16 ) , F3 ( > C16 - C34 ) , and F4 ( > C34 ) .
 Chemical: petroleum hydrocarbons; Chemical: petroleum hydrocarbons
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: petroleum hydrocarbons; Chemical: petroleum hydrocarbons