Sentence 1: Mr. Manuel and his group entered the United States by walking across the bridge linking Matamoros and Brownsville.

Sentence 2: Manuel and his group entered the US the same way thousands of people do every day, by walking across the bridge between Matamoros and Brownsville.

From 0 to 5 (0="no meaning overlap" and 5="means the same thing"), how similar are the two sentences?
4