Determine Whether a Function Exists with Set $A$ As the Input and Set

True/False

Determine whether a function exists with set $A$ as the input and set $B$ as the output.
- $\begin{array}{l|c}\text { Set A } & \text { Set B } \\\text { Person } & \text { Month } \\\hline \text { Thompson } & \text { April } \\\hline \text { McGraw } & \text { May } \\\hline \text { Robinson } & \text { June } \\\hline \text { Thompson } & \text { July } \\\hline \text { Martinez } & \text { August } \\\hline\end{array}$