1278
First , the finding of a monomeric Alu family repeat at the junction between nonhomology block I and homology block Y of the alpha 2 gene - containing unit in rhesus macaque suggests that the dimeric Alu family repeat , Alu 3 , at the orthologous position in human was generated by insertion of a monomeric Alu family repeat into the 3 ' end of another preexisting Alu family repeat .
 GENE: Alu; GENE: alpha 2 gene - containing unit in rhesus macaque; GENE: Alu; GENE: Alu 3; GENE: Alu; GENE: Alu
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: Alu, alpha 2 gene - containing unit in rhesus macaque, Alu, Alu 3, Alu, Alu 
Answer:
 GENE: Alu; GENE: alpha 2 gene - containing unit in rhesus macaque; GENE: Alu; GENE: Alu 3; GENE: Alu; GENE: Alu