11152
At the same time , moves toward tighter air - quality standards are spurring interest in lighter or alternative fuels that do n't pollute as much as fuel refined from `` heavy '' crudes , generally high in sulfur .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: date, organization, person, geographical social political, national religious political, facility, cardinal, location, work of art, law, event, product, ordinal, percent, time, quantity, money, language 
Text: {0} 
 Entities:  
Answer:
 None