Table: wgrc
[['call sign', 'frequency mhz', 'city of license', 'erp w', 'class', 'fcc info'], ['wcrg', '90.7', 'williamsport , pennsylvania', '3000', 'a', 'fcc'], ['wjrc', '90.9', 'lewistown , pennsylvania', '94', 'a', 'fcc'], ['wzrg', '91.9', 'kulpmont , pennsylvania', '1450', 'a', 'fcc'], ['w269bz', '101.7', 'state college , pennsylvania', '4', 'd', 'fcc'], ['w296ap', '107.1', 'williamsport , pennsylvania', '5', 'd', 'fcc'], ['w299af', '107.7', 'catawissa , pennsylvania', '1', 'd', 'fcc']]
Statement: there are 2 Call Sign in Williamsport , Pennsylvania
Statement: the 2 Call Sign in Williamsport , Pennsylvania have are different Class
Statement: the smallest Erp W on the table is a Class D
Statement: the largest Erp W on the table is a Class a
Statement: the highest Frequency Mhz is in Catawissa , Pennsylvania