Convert the body mass index into the correct category.
19.6
A Body Mass Index (BMI) of 19.6 falls within the normal weight category.
Complete the following task based on the instruction and optional input provided.### Instruction:
Convert the body mass index into the correct category.

### Input:
19.6

### Output:
A Body Mass Index (BMI) of 19.6 falls within the normal weight category.