A prepositional phrase is a preposition and a noun, with or without the addition of a modifier. "At the corner" is the prepositional phrase in this instance.
: However, the soldier puts the twins in the tank.
Terence Tao is a supreme problem-solver whose spectacular work has had an impact across several mathematical areas. He combines sheer technical power, an other-worldly ingenuity for hitting upon new ideas, and a startlingly natural point of view that leaves other mathematicians wondering, " Why didn't anyone see that before?"
