That theory, a concept first proposed by Albert Einstein and often reiterated by British astrophysicist Stephen Hawking, seeks to find a single set of equations that can explain all the fundamental forces in the universe: gravity, electromagnetism, and the strong and weak interactive forces among subnuclear particles.
Einstein and Hawking went to the same university. OPTIONS:
- Yes
- It's impossible to say
- No
A: It's impossible to say

A U.S. military transport plane carrying humanitarian aid meant for Venezuelans landed in the Colombian border city of Cucuta on Saturday, where food and medicine are being stored amid uncertainty over how and where aid will be distributed. Havovi Cooper reports.
America aids the less fortunate OPTIONS:
- Yes
- It's impossible to say
- No
A: Yes

Watermelon<br>Jane bought a watermelon. She tried to cut it open with an electric knife. Her hand slipped while she was cutting. The knife cut through her finger. She had to go to the hospital.
Jane was using an electric knife for the watermelon OPTIONS:
- Yes
- It's impossible to say
- No
A: