Classify the following sentence as either correct or incorrect grammar:

"She likes ice cream it is tasty."
Sentence: She likes ice cream it is tasty.
Incorrect grammar.
Complete the following task based on the instruction and optional input provided.### Instruction:
Classify the following sentence as either correct or incorrect grammar:

"She likes ice cream it is tasty."

### Input:
Sentence: She likes ice cream it is tasty.

### Output:
Incorrect grammar.