It is given that,
Nine members are D, E, F, G, H, I, J, K and L.
D is I's mother, and K is D's daughter.
H, who is unmarried, is K's only sister.
J is H's sister-in-law and is D's daughter-in-law.
We get,
.................................(1)
L is F's brother, and is married to E.
F is the paternal aunt of G who is E's son.
We get,
.....................................(2)
G is not unmarried.
There are three couples in the family.
From (1) and (2), G and D are married.
The final arrangement is,
Here, E is H's grandmother.
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