Read the following premise and answer if the hypothesis is true.
The Collected Stories of Katherine Anne Porter is a book by Katherine Anne Porter published by Harcourt in 1965, comprising nineteen "short stories and long stories", as Porter herself would say. It won the Pulitzer Prize for Fiction and the U.S. National Book Award for Fiction.
Hypothesis: Harcourt published all of Katherine Anne Porter's books.. Is the answer "Yes", "No", or "It's impossible to say"? Respond with only the answer and no additional text.
It's impossible to say
It's impossible to say.