Context:
In 1973, the United States and Communist China agreed to establish liaison offices in Beijing and Washington.
Hypothesis: The United States president personally approved it
It's impossible to say
Context:
How to do static leg lifts<br>Start with the basic leg lift. When you raise your legs from the hips, you can strengthen your hips, which will result in increased mobility and less lower back pain. To perform the basic static leg lift, lie on your back on the floor.
Hypothesis: It has recently been discovered that static leg lifts burn more calories than regular leg lifts.
It's impossible to say
Context:
Democrat Culbert L. Olson, elected governor of California in 1938, was a loyal supporter of Roosevelt's New Deal.
Hypothesis: Olsen begin his political career as a mayor in Oregon.

It's impossible to say