4807
We report here the cloning of the murine p44 MAP kinase ( extracellular signal - regulated kinase 1 ) gene , the determination of its intron / exon boundaries , and the characterization of its promoter .
 GENE: p44; GENE: MAP kinase; GENE: extracellular signal - regulated kinase 1
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: p44, MAP kinase, extracellular signal - regulated kinase 1 
Answer:
 GENE: p44; GENE: MAP kinase; GENE: extracellular signal - regulated kinase 1