Identify the type of punctuation mark used in the following sentence: The weather is hot.
The punctuation mark used in the sentence, "The weather is hot," is a period (.).
Complete the following task based on the instruction and optional input provided.### Instruction:
Identify the type of punctuation mark used in the following sentence: The weather is hot.

### Output:
The punctuation mark used in the sentence, "The weather is hot," is a period (.).