Task: Text Simplification
Input (English): the eared seals or otariids are marine mammals in the family otariidae , one of three groupings of pinnipeds.
Output (English): the eared seals or otariids are marine mammals -lrb- a warm-blooded vertebrate animal of a class living in the sea -rrb- in the family otariidae , one of three groupings of pinnipeds.