13503
It was investigated whether ethanol ( Et ) modifies the damaging impact of lead ( Pb ) on bone metabolism in a rat model reflecting excessive alcohol consumption by humans exposed to relatively high levels of this metal .
 Chemical: ethanol; Chemical: Pb; Chemical: alcohol
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: ethanol; Chemical: Pb; Chemical: alcohol