[Q]: Information:  - A spur is a metal tool designed to be worn in pairs on the heels of riding boots for the purpose of directing a horse to move forward or laterally while riding . It is usually used to refine the riding aids ( commands ) and to back up the natural aids ( the leg , seat , hands and voice ) . The spur is used in many equestrian disciplines . There are rules in most equestrian organizations about spur design , use and penalties for using spurs in any manner that constitutes animal abuse .  - Poker is a family of gambling card games, but is often considered a skill based game. All poker variants involve betting as an intrinsic part of play, and determine the winner of each hand according to the combinations of players' cards, at least some of which remain hidden until the end of the hand. Poker games vary in the number of cards dealt, the number of shared or "community" cards, the number of cards that remain hidden, and the betting procedures.  - Riding aids are the cues a rider gives to a horse to communicate what they want the animal to do. Riding aids are broken into the "natural aids" and the "artificial aids".  - A boot is a type of footwear and a specific type of shoe. Most boots mainly cover the foot and the ankle, while some also cover some part of the lower calf. Some boots extend up the leg, sometimes as far as the knee or even the hip. Most boots have a heel that is clearly distinguishable from the rest of the sole, even if the two are made of one piece. Traditionally made of leather or rubber, modern boots are made from a variety of materials. Boots are worn both for their functionality  protecting the foot and leg from water, extreme cold, mud or hazards (e.g., work boots may protect wearers from chemicals or use a steel toe) or providing additional ankle support for strenuous activities with added traction requirements (e.g., hiking)  and for reasons of style and fashion.  - A riding boot is a boot made to be used for horse riding. The classic boot comes high enough up the leg to prevent the leathers of the saddle from pinching the leg of the rider, has a sturdy toe to protect the rider's foot when on the ground and has a distinct heel to prevent the foot from sliding through the stirrup. The sole is smooth or lightly textured to avoid being caught on the tread of the stirrup in the event of a fall.  - H.O.R.S.E. is a form of poker commonly played at the high-stakes tables of casinos. It consists of rounds of play cycling among:    Given the information, choose the subject and object entities that have the relation of 'subclass of'.
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[A]: spur , footwear


Problem: Information:  - The Natchez Trace Parkway (also known as the Natchez Trace or simply the Trace) is a National Parkway in the southeastern United States that commemorates the historic Old Natchez Trace and preserves sections of the original trail. Its central feature is a two-lane parkway road that extends 444 miles (715 km) from Natchez, Mississippi, to Nashville, Tennessee. Access to the parkway is limited, with more than fifty access points in the states of Mississippi, Alabama, and Tennessee. The southern end of the route is in Natchez at an intersection with Liberty Road, and the northern end is northeast of Fairview, Tennessee, in the suburban community of Pasquo, Tennessee, at an intersection with Tennessee 100. In addition to Natchez and Nashville, the larger cities along the route include Jackson and Tupelo, Mississippi, and Florence, Alabama.  - Mississippi Highway 30 is an eastwest corridor that runs from Oxford, Mississippi, at the western terminus to the Natchez Trace Parkway at the eastern terminus.  - Mississippi Highway 1 (MS 1) runs south from U.S. Highway 49 near Lula to U.S. Highway 61 south of Cary, roughly paralleling the Mississippi River. It travels approximately , serving Sharkey, Issaquena, Washington, Bolivar, and Coahoma Counties. The entire route is part of the Great River Road.  - Mississippi Highway 12 runs westeast from Mississippi Highway 1 west of Hollandale to State Route 18 at the Alabama state line northeast of Columbus.  - Alabama is a state in the southeastern region of the United States. It is bordered by Tennessee to the north, Georgia to the east, Florida and the Gulf of Mexico to the south, and Mississippi to the west. Alabama is the 30th-most extensive and the 24th-most populous of the U.S. states. At nearly , Alabama has one of the nation's longest navigable inland waterways.  - Mississippi Highway 9 runs north -- south from Mississippi Highway 30 east of New Albany to Mississippi Highway 12 in Ackerman . It runs approximately 105 miles ( 169 km ) , serving Choctaw , Webster , Calhoun , Pontotoc , and Union counties .  - Oxford is a city in, and the county seat of, Lafayette County, Mississippi, United States. Founded in 1837, it was named after the British university city of Oxford in hopes of having the state university located there, which it did successfully attract.     Given the information, choose the subject and object entities that have the relation of 'instance of'.

A:
mississippi highway 9 , road