1976
Immunohistochemistry assay was performed for topo I protein expression in 249 primary human colorectal cancer and 42 paired lymph node metastasis samples .
 Anatomy: primary human colorectal cancer; Anatomy: lymph node metastasis samples
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
 Entities: primary human colorectal cancer, lymph node metastasis samples 
Answer:
 Anatomy: primary human colorectal cancer; Anatomy: lymph node metastasis samples