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- Sporadic E propagation - spray ( solar physics ) - Spread spectrum - stratosphere - substorm - sudden ionospheric disturbance ( SID ) - sunspot - sunspot cycle - sunspot number - super high frequency ( SHF ) - supergranulation - Surface wave - Solar X-ray Imager ( SXI ) - synodic - synoptic chart - T thermal fade - thermosphere - Time signal - total electron content - transition region - troposphere - Tropospheric propagation - tropospheric scatter - tropospheric wave - TV and FM DX - U UHF - UHF CB - ultrahigh frequency - ultraviolet - umbra - Union Radio Scientifique Internationale ( URSI ) - V Van Allen radiation belts - very high frequency - very low frequency - VOACAP - W wave propagation - Weibull fading - Weissberger 's model - White Alice Communications System - Wolf number - WWV ( radio station ) X X band - X-band - X-ray - X-ray background - X-ray burst Y Young Model - Z Zeeman effect - See also External links
 organization: Radio
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: Radio 
Answer:
 organization: Radio