Words given on the left side of (∶∶) are related with each other by some Logic/Rule /Relation. Select the missing word/word pair on the right side of (∶∶) from the given alternatives based on the same Logic/Rule/Relation.
Horse ∶ Mare ∶∶ ?
1
Nephew ∶ Uncle
2
Son ∶ Father
3
Brother ∶ Sister
4
Cow ∶ Bull