11198
However , in lactating rats the diurnal peak was significantly reduced , resulting in a flattened rhythm , and three days after weaning , basal HPA activity was markedly suppressed : the number of pulses and underlying basal levels of corticosterone were reduced and the diurnal rise phase delayed .
 Chemical: corticosterone
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: corticosterone 
Answer:
 Chemical: corticosterone