‘A # B’ means ‘A is the brother of B’.
‘A @ B’ means ‘A is the daughter of B’.
‘A & B’ means ‘A is the husband of B’.
‘A % B’ means ‘A is the wife of B’.
If ‘W # Q @ T & Y @ M % K’, then how is K related to T?

Father-in-law

ATQ, 

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Please note:

  l   ⇒ Vertical line shown "generation gap".

 =  ⇒ Double lines shown "relation of spouse" 

—  ⇒ Horizontal line shown "relation in same generation other than spouse".

     ⇒ Rectangular box shown " Male".

     ⇒ Circular box shown " Female".

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