5029
The primary OCP was 1 , 1 , 1 - trichloro - 2 , 2 - bis ( p - chlorophenyl ) ethane ( p , p ' - DDT ) , its primary metabolite , 1 , 1 ' - dichloro - 2 , 2 ' - bis ( p - chlorophenyl ) ethylene ( p , p ' - DDE ) and the contaminant , 1 , 1 , 1 - trichloro - 2 - ( p - chlorophenyl ) - 2 - ( o - chlorophenyl ) - ethane ( o , p ' - DDT ) .
 Chemical: 1 , 1 , 1 - trichloro - 2 , 2 - bis ( p - chlorophenyl ) ethane; Chemical: p , p ' - DDT; Chemical: 1 , 1 ' - dichloro - 2 , 2 ' - bis ( p - chlorophenyl ) ethylene; Chemical: p , p ' - DDE; Chemical: 1 , 1 , 1 - trichloro - 2 - ( p - chlorophenyl ) - 2 - ( o - chlorophenyl ) - ethane; Chemical: o , p ' - DDT
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: 1 , 1 , 1 - trichloro - 2 , 2 - bis ( p - chlorophenyl ) ethane, p , p ' - DDT, 1 , 1 ' - dichloro - 2 , 2 ' - bis ( p - chlorophenyl ) ethylene, p , p ' - DDE, 1 , 1 , 1 - trichloro - 2 - ( p - chlorophenyl ) - 2 - ( o - chlorophenyl ) - ethane, o , p ' - DDT 
Answer:
 Chemical: 1 , 1 , 1 - trichloro - 2 , 2 - bis ( p - chlorophenyl ) ethane; Chemical: p , p ' - DDT; Chemical: 1 , 1 ' - dichloro - 2 , 2 ' - bis ( p - chlorophenyl ) ethylene; Chemical: p , p ' - DDE; Chemical: 1 , 1 , 1 - trichloro - 2 - ( p - chlorophenyl ) - 2 - ( o - chlorophenyl ) - ethane; Chemical: o , p ' - DDT