Option 1 Temple - Pray
Relationship: A temple is a place where people go to pray. (Place → Activity)
Option 2 Theatre - Movies
Relationship: A theatre is a place where movies are shown. (Place → Content/Activity)
Option 3 Park - Swim
Relationship: A park is generally not a place primarily associated with swimming. Parks are more commonly linked with walking, playing, relaxing, etc.
Mismatch in relationship - swimming typically happens in a pool or lake, not usually in a park. (Place → Unrelated Activity)
Option 4 Restaurant - Dinner
Relationship: A restaurant is a place where people go to have dinner (or other meals). (Place → Activity)
So, option 3 is the word-pair does NOT belong to that group.