1398
Immunohistochemical and in situ hybridization studies revealed the presence of IGF - I / II - IGF - IR ligands and mRNA transcripts in embryonic lungs as early as 4 wk gestation .
 Anatomy: embryonic lungs
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 lungs