Edit the text for grammar and punctuation.
Today was such a good day the sun was shining and the birds were sing
"Today was such a good day. The sun was shining and the birds were singing."
Complete the following task based on the instruction and optional input provided.### Instruction:
Edit the text for grammar and punctuation.

### Input:
Today was such a good day the sun was shining and the birds were sing

### Output:
"Today was such a good day. The sun was shining and the birds were singing."