Predicting the value of column B by looking at Column A

I am trying to design a system where I want to predict the values of column B by looking at column A.
For example, let’s say in column A I have the timestamps and in column B I have tasks.
Now I want to look at the timestamps and predict what task to do at that time. How do I implement this in nupic?

Create a model with two input fields. Swarm for predicting B. If A contributes to B predictions, the swarm will return model parameters that include an encoding for A.