Classify the relationship between John and Mary.
John and Mary are siblings.
The relationship between John and Mary is that of siblings. They share a familial bond where they have common parents.
Complete the following task based on the instruction and optional input provided.### Instruction:
Classify the relationship between John and Mary.

### Input:
John and Mary are siblings.

### Output:
The relationship between John and Mary is that of siblings. They share a familial bond where they have common parents.