What is the fine-grained topic of the following text: Sherwin-Williams Protective & Marine Coatings, together with the U.S. Navy and Mid-Atlantic Coatings Inc. (MAC), earned the SSPC (Society for Protective Coatings) Military Coatings Project Award of Excellence for their work on the George Washington aircraft (super) carrier. Only return the topic.
Sherwin-Williams, U.S. Navy and MAC winning the SSPC Military Coatings Project Award of Excellence for work on the George Washington aircraft carrier.