Sentence 1: The time setting of `` Leave It to Beaver '' is contemporary with its production -- the late 1950s and the early 1960s .
Sentence 2: The time setting of `` Leave It to Beaver '' is contemporary with its production -- in the early 1950s and the late 1960s .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?