Identify the segment in the sentence that contains a grammatical error.
In the kitchen, the knife, with its sleek design and fantastic engineering, was a sharpest, effortlessly slicing through the ripe tomatoes to demonstrate its superior cutting ability.
1
In the kitchen, the knife, with its sleek design and fantastic engineering
2
through the ripe tomatoes to demonstrate its superior cutting ability
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was a sharpest, effortlessly slicing
4
No error