human
Considering the provided database schema and associated query, produce SQL code to retrieve the answer to the query. 
###Database Schema: Model, Build year, Top speed (In operation) (km/h), Power output (kW), Builder (Family), Total production
###Question: What is the power output (kw) of model hxd2b?
gpt
SELECT Power output (kW) FROM table WHERE Model = hxd2b