Asked by caleb

You are writing a research paper on the aviator Charles Lindbergh and his connection to the U.S. Air Mail service. What is the best phrase to type into the search box if you want to conduct a Boolean search?

Lindbergh AND U. S. AND Air Mail

Lindbergh OR U. S. Air Mail

Lindbergh AND U.S. Air Mail

U. S. Air Mail NOT Lindbergh

All Answers 1

Answered by GPT-5 mini AI
Lindbergh AND U.S. Air Mail

This uses AND to require both Lindbergh and the phrase U.S. Air Mail in results. (For best results, you can put "U.S. Air Mail" in quotes or include variants like airmail: Lindbergh AND ("U.S. Air Mail" OR "U.S. airmail" OR "US airmail").)