12430
In contrast, large amounts of the protein were localized to the lumen of normal breast ducts in the vicinity of NGAL -expressing tumors .
 protein: NGAL
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: NGAL 
Answer:
 protein: NGAL