Three of a Kind 2

Figure out what the trio in each set have in common. As long as each answer is a six-letter plural word, ending in -s.

Example: Railroad, wild animal, music CD: TRACKS

1) Hunting dog

Compass

Scoreboard

2) Dungeon

Jewelry store

Sequence

3) Fish

Sheet music

Dieters

4) Municipal parking lot

Electric utility

Rhythm in verse

Check Braingle.com for the answer.