Parse the following text and output the root of the verb.
My mother is baking a pie.
The root of the verb in the sentence "My mother is baking a pie" is "bake".
Complete the following task based on the instruction and optional input provided.### Instruction:
Parse the following text and output the root of the verb.

### Input:
My mother is baking a pie.

### Output:
The root of the verb in the sentence "My mother is baking a pie" is "bake".