Is it understandable to compare a blood spatter pattern to a Jackson Pollock piece?
Jackson Pollock is well known for a style of art formed through splashing liquids on canvas. Blood spatter patterns are caused by a splash of blood onto a surface or multiple surfaces.
The answer is yes.

Could the Great Wall of China connect the Dodgers to the White Sox?
The Dodgers are a baseball team located in Los Angeles. The White Sox are a baseball team located in Chicago. The distance between Los Angeles and Chicago is 2,015 miles. The length of the main section of the Great Wall of China is 2,145 miles.
The answer is yes.

Would a recruit for the United States Marine Corps be turned away for self harm?
Self harm is when someone intentionally causes injury or pain to themselves. Self harm is almost always related to a mental health condition. Those experiencing mental wellness related illnesses cannot join the Marines.
The answer is yes.

Would most grand masters know what the French Defense is?

Grand master is the highest title a chess player can get. The French Defense is a well known chess opening that is in many books.
The answer is yes.