2268
There are limited mouse models for the BMP signaling SMADs ( BR - SMADs ) 1 , 5 , and 8 because of embryonic lethality and suspected genetic redundancy .
 Anatomy: embryonic
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Anatomy 
Text: {0} 
Answer:
 Anatomy: embryonic