I've been trying to implement a VLOOKUP table on my sheet, but I don't get the hang of them.

What would my "=VLOOKUP..." statement look like for the following simple example? Remember, I want variables t and s to indicate data from Day 1 or Day 2 when variable X is changed to a 1 or a 2. 

Col A      Col B   Col C   Col D    Col E
                           Day No.  X
Day no.     1       2    | Today
Bench P    100     110   |  t
Leg P      200     210   |  s