Table:
text: WVTF
Low power translators
Broadcast translators 
 of WISE-FM
Call_sign Frequency_MHz City_of_license ERP_W FCC_info
W211BF 90.1 Big Stone Gap, Virginia 8 FCC
W212BP 90.3 Clintwood, Virginia 1 FCC
W211BE 90.1 Lebanon, Virginia 8.5 FCC
W219CJ 91.7 Norton, Virginia 50 FCC
W217BF 91.3 Pound, Virginia 1 FCC
W215BJ 90.9 Saint Paul, Virginia 1 FCC

Question: Tell me the call sign under WVTF that has a frequency greater than 90.1 Mhz and ERP W of 1?

Question: Give the total number of ERP W when the callsign is w217bf under WVTF?

Question: Give the total number of frequencies in MHz if it has ERP W of 1 and callsign w215bj for WVTF?

Question: Call the average ERP W if it has a license city of Pounds, Virginia and a frequency greater than 91.3MHz under WVTF?