Identify the main subject of the following piece of literature.
Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do.
The main subject of the literature is Alice.
Complete the following task based on the instruction and optional input provided.### Instruction:
Identify the main subject of the following piece of literature.

### Input:
Alice was beginning to get very tired of sitting by her sister on the bank, and of having nothing to do.

### Output:
The main subject of the literature is Alice.