Read the following premise and answer if the hypothesis is true.
George Palmer Putnam (September 7, 1887 – January 4, 1950) was an American publisher, author and explorer. Known for his marriage to (and being the widower of) Amelia Earhart, he had also achieved fame as one of the most successful promoters in the United States during the 1930s.
Hypothesis: Putnam was the promoter of Earhart's journeys.. 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
Yes.