13544
The accumulation of heavy metals such as lead ( Pb ) , iron ( Fe ) , zinc ( Zn ) , cadmium ( Cd ) , and chromium ( Cr ) was examined in crab ( Scylla serrata ) and shrimps ( Penaeus semisulcatus , Penaeus indicus , and Penaeus monodon ) collected from Pulicat lake that receives effluents from industries located in north Chennai , southeast coast of India .
 Chemical: Pb; Chemical: iron; Chemical: Fe; Chemical: zinc; Chemical: Zn; Chemical: cadmium; Chemical: Cd; Chemical: chromium; Chemical: Cr
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: Pb, iron, Fe, zinc, Zn, cadmium, Cd, chromium, Cr 
Answer:
 Chemical: Pb; Chemical: iron; Chemical: Fe; Chemical: zinc; Chemical: Zn; Chemical: cadmium; Chemical: Cd; Chemical: chromium; Chemical: Cr