2038
The levels of both MAP1 - specific and MAP2 - specific mRNAs decline in the postnatal developing brain ; the level of MAP1 - specific mRNA also increases slightly in rat PC12 cells upon exposure to nerve growth factor .
 GENE: MAP1 - specific and MAP2 - specific mRNAs; GENE: MAP1 - specific mRNA; GENE: nerve growth factor
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: MAP1 - specific and MAP2 - specific mRNAs, MAP1 - specific mRNA, nerve growth factor 
Answer:
 GENE: MAP1 - specific and MAP2 - specific mRNAs; GENE: MAP1 - specific mRNA; GENE: nerve growth factor