Get full output of duckling

Hello everybody! I’m appologies for stupid question, however how can I get a full output of duckling entity recogniser? DucklingHTTPExtractor server is run, in config.yml is written right port and dimensions. However, for example for duration entity there is extracted only digital value (for input “for 2 days” the output is “2”). How can I get output {2, "day"} for example above?