The words in each set have a common connection, something that bonds all three of them in some way, shared features or characteristics...a manifestation of common attributes.
Can you find a Commonality?
= 1. SOAP, PIANOS, COAST
= 2. CREDITS, EXOTIC LOCALES, MUSIC
= 3. NAVY BEAN, GAZPPACHO,MATZO BALL
= 4. PRIZES, LETTERS, THE WHEEL
= 5. POLITICS, RELIGION, MONEY
= 6. LEFT BANK, SEINE, LOUVRE
= 7. PIRATE, GHOST, CLOWN
= 8. MURROW, WALTERS, RATHER
= 9. FREE WEIGHTS, LOCKERS, STAIRMASTERS
= 10. KNOCK KNOCK, POLISH, PRACTICAL