8631
However , inhibition of both the ERK / RSK and the p38 / MAPKAP kinase 2 pathways completely abolished NGF - induced CREB Ser - 133 phosphorylation .
 GENE: ERK; GENE: RSK; GENE: p38; GENE: MAPKAP kinase 2; GENE: NGF; GENE: CREB
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: ERK, RSK, p38, MAPKAP kinase 2, NGF, CREB 
Answer:
 GENE: ERK; GENE: RSK; GENE: p38; GENE: MAPKAP kinase 2; GENE: NGF; GENE: CREB