163478
The organization is housed in a 70-year-old house and contains scores of resource-saving devices such as solar roof panels , a gravity-based rainwater collection system to water the gardens , and an electrical generator which runs on biodiesel made from cooking oil from the school 's cafeteria .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None