Premise:
"At the opposite end rise the three remnants of the original Hippodrome."
Hypothesis: On the other side is the three remaining pieces from the original Hippodrome.

yes

Premise:
"However, before such catastrophic effects, low national saving would probably result in higher interest rates, rising inflation, and the increasing reluctance of foreign investors to lend to a weakening U.S. economy."
Hypothesis: Previously, low national saving would make interest rates rise.

yes

Premise:
"A wide walkway riverside allows you to stroll and benches allow for a shady seat."
Hypothesis: You can stroll or have a seat on the benches along the riverside
yes