(1) It was opened on April 8 , 1994 and was the second bridge over the lower Mekong , and the first on the full course of the Mekong .
(2) Opened on April 8 , 1994 , it was the first bridge across the lower Mekong , and the second on the full course of the Mekong .

Do these two sentences mean the same thing?

Choose from:
+no;
+yes;
no