Pig, Cow, Giraffe, Horse
Giraffe - All farm animals
Thames, Seine, Alps, Nile
Alps - All rivers
Cup, Saucer, Sugar Bowl, Frying Pan
Frying Pan - All others to do with tea
Bach, Mozart, Beethoven, Blake
Blake - All classical composers
Dressing Gown, Slippers, Nightie, Jacket
Jacket - All to do with sleepwear
Tennis, Swimming, Rugby, Football
Swimming - All others are sport played with a ball
Pillow, Chair, Sheet, Duvet
Chair - All to do with the bed
John Lennon, Paul McCartney, Billy Joel, George Harrison
Billy Joel - All the others are members of The Beatles
Thomas Jefferson, Emmanuel Macron, Joe Biden, George Washington
Emmanuel Macron - All USA Presidents
Dalmatian, Lion, Chihuahua, Spaniel
Lion - Others all dogs
Fahrenheit, Celsius, Kelvin, Inch
Inch - All the others are units of temperature
Socks, Shoe, Boots, Slipper
Socks - All footwear
Watch, Wrist, Earrings, Necklace
Wrist - All jewelry
Dahlia, Rose, Poppy, Pine
Pine - All flowers
English, Greek, Athens, French
Athens - All others are languages
Madrid, London, Wellington, Paris
Wellington - All European capitals
Milk, Yogurt, Jelly, Cream
Jelly - All milk products
Nose, Toe, Eyelash, Forehead
Toe - All others are part of the face
Orange, Pear, Yellow, Red
Pear - All others are colors
Eagle, Hawk, Sparrow, Kangaroo
Kangaroo - All the others are birds
Monday, October, February, December
Monday - All others are months of the year