What is the number of brand where the power is 5kw?
{'header': ['Branding', 'Callsign', 'Frequency', 'Power (kW)', 'Location'], 'page_title': 'DWJY', 'section_title': 'NBC Radio Stations', 'caption': 'NBC Radio Stations', 'rows': [['Radyo5 92.3 News FM', 'DWFM', '92.3MHz', '25kW', 'Metro Manila'], ['Radyo5 102.3 News FM', 'DZYB-FM', '102.3MHz', '10kW', 'Baguio'], ['Radyo5 102.3 News FM', 'DYBC-FM', '102.3MHz', '5kW', 'Bacolod'], ['Radyo5 101.9 News FM', 'DYNC-FM', '101.9MHz', '10kW', 'Cebu'], ['Radyo5 101.5 News FM', 'DXRL-FM', '101.5MHz', '10kW', 'Cagayan De Oro']]}