In the 1930s Walter Knott began growing a new strain of berry, the boysenberry, and it soon became a booming enterprise.
Walter Knott made sure to avoid using the boysenbery.
mnli hypothesis: Walter Knott made sure to avoid using the boysenbery. premise: In the 1930s Walter Knott began growing a new strain of berry, the boysenberry, and it soon became a booming enterprise.