How does Google autocompletethis query?

my cat likes to eat

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• 

  

  my cat likes to eat

  10,000
• 

  

  my cat likes to eat

  9,000
• 

  

  my cat likes to eat

  8,000
• 

  

  my cat likes to eat

  7,000
• 

  

  my cat likes to eat

  6,000
• 

  

  my cat likes to eat

  5,000
• 

  

  my cat likes to eat

  4,000
• 

  

  my cat likes to eat

  3,000
• 

  

  my cat likes to eat

  2,000
• 

  

  my cat likes to eat

  1,000

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