4469
Finally , genetic ablation of Brk1 results in dramatic defects in embryo compaction and development , suggesting an essential role for this protein in actin dynamics .
 Anatomy: embryo
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: embryo 
Answer:
 Anatomy: embryo