Generate a sentence containing the words cheerful and frog.
"Once upon a time, there was a delightful little frog who loved to explore the sunny meadow and always had a cheerful croak for everyone he met."
Complete the following task based on the instruction and optional input provided.### Instruction:
Generate a sentence containing the words cheerful and frog.

### Output:
"Once upon a time, there was a delightful little frog who loved to explore the sunny meadow and always had a cheerful croak for everyone he met."