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.
Albert begins with a vowel.
( z1 begin :ARG0 ( z2 person :name ( z3 name :op "Albert" ) ) :ARG2 ( z4 vowel ) )