Expand the abbreviated word given in the sentence. Output the modified sentence directly.
My teacher is a PhD in Lit.
My teacher is a Doctor of Philosophy in Literature.
Complete the following task based on the instruction and optional input provided.### Instruction:
Expand the abbreviated word given in the sentence. Output the modified sentence directly.

### Input:
My teacher is a PhD in Lit.

### Output:
My teacher is a Doctor of Philosophy in Literature.