Answer:
GDP deflator for this year is calculated by dividing the value of all goods and services produced in the economy using this year's prices by the value of all goods and services produced in the economy using the base year's prices. However, the CPI reflects only the prices of all goods and services bought by the consumers.
1. Scenario: A decrease in the price of a Treewood Equipment feller buncher, which is a commercial forestry machine made in the U.S. but not bought by U.S. consumers
Shows up: In the GDP Deflator not CPI
2. Scenario: An increase in the price of a Japanese-made television that is popular among U.S. consumers.
Shows up: In the CPI not GDP Deflator