‘C @ D’ means ‘C is the father of D’.

‘C * D’ means ‘C is the brother of D’.

'C × D’ means ‘D is the husband of C’.

‘C # D’ means ‘C is the sister of D’.

‘C $ D’ means ‘C is the son-in-law of D’.

‘C = D’ means ‘C is the mother of D’.

How is A related to C in the following expression?

A @ L # F * E × G $ C

Husband

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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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