Task: Text Matching
Input (English): Sentence1: At best , Davydenko 's supporters were naively ignorant of tennis etiquette ; at worst , they cheated - yet went without penality from umpire Lars Graf ., Sentence2: At best , Davydenko 's supporters were naively ignorant to tennis etiquette ; at worst , they cheated – yet went unpenalised by umpire Lars Graf .
Output (English): Yes