Group 1 - The core point of the article is that Japan has committed to purchasing American-made commercial aircraft, including a deal to buy 100 Boeing airplanes [1] Group 2 - The agreement signifies a strengthening of economic ties between the United States and Japan in the aerospace sector [1] - This purchase could potentially boost Boeing's sales and production figures significantly [1] - The deal reflects Japan's ongoing efforts to enhance its aviation capabilities while supporting American manufacturers [1]