Sentence 1: Various attempts have been made to reconstruct when sabbatical years actually fell using instructions in the Biblical text and events that were clearly understood in fixed historically dated calendars .
Sentence 2: Various attempts have been made to reconstruct when Sabbatical years actually fell using clues in the Biblical text and events clearly understood in fixed historically dated calendars .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?