Information: - A velodrome is an arena for track cycling. Modern velodromes feature steeply banked oval tracks, consisting of two 180-degree circular bends connected by two straights. The straights transition to the circular turn through a moderate easement curve. - A Derny is a motorized bicycle for motor-paced cycling events such as during six-day and Keirin racing and motor-paced road races. Some riders train behind a derny on the road. The Derny is so-called as it was originally produced by the French Derny firm, but the name "Derny" is now applied to all small cycle-pacing vehicles, regardless of manufacturer. - Track cycling is a bicycle racing sport usually held on specially built banked tracks or velodromes (but many events are held at older velodromes where the track banking is relatively shallow) using track bicycles. - A motorcycle (also called a motorbike, bike, or cycle) is a two- or three-wheeled motor vehicle. Motorcycle design varies greatly to suit a range of different purposes: long distance travel, commuting, cruising, sport including racing, and off-road riding. Motorcycling is riding a motorcycle and related social activity such as joining a motorcycle club and attending motorcycle rallies. - Races are about long: 8 laps on a track, 6 laps on a track, 5 laps on a track. Lots are drawn to determine starting positions for the sprint riders behind the pacer, which is usually a motorcycle, but can be a derny, electric bicycle or tandem bicycle. Riders must remain behind the pacer for a predetermined number of laps. Initially it makes circuits at about , gradually increasing to about . The pacer usually leaves the track approximately before the end. The winner's finishing speed is around . - Aomori Velodrome ( Aomori Keirinjy ) , also known as Jomon Bank Aomori Velodrome , is a velodrome located in Aomori City that conducts pari - mutuel Keirin racing - one of Japan 's four authorized '' Public Sports '' ( kei kygi ) where gambling is permitted . Its Keirin identification number for betting purposes is 12 # ( 12 sharp ) . Aomori 's oval is 400 meters in circumference . A typical keirin race of 2,025 meters consists of five laps around the course . Due to its location in the northern part of Tohoku , races at Aomori Velodrome are held during warm weather months , from April to November . What object entity has the relation of 'sport' with the subject 'aomori velodrome'? Choices: - cycling - sport - sprint - track cycling
track cycling
Ques:Information: - Strategic bombing is a military strategy used in a total war with the goal of defeating the enemy by destroying its morale or its economic ability to produce and transport materiel to the theatres of military operations, or both. It is a systematically organized and executed attack from the air which can utilize strategic bombers, long- or medium-range missiles, or nuclear-armed fighter-bomber aircraft to attack targets deemed vital to the enemy's war-making capability. - World WarII (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's nationsincluding all of the great powerseventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust (in which approximately 11 million people were killed) and the strategic bombing of industrial and population centres (in which approximately one million were killed, and which included the atomic bombings of Hiroshima and Nagasaki), it resulted in an estimated 50 million to 85 million fatalities. These made World WarII the deadliest conflict in human history. - Sergeant Ross Franklin Gray ( August 1 , 1920 -- February 27 , 1945 ) was a United States Marine who posthumously received the Medal of Honor -- the highest military honor of the United States -- for his heroic service in the Battle of Iwo Jima during World War II -- he single - handedly disarmed an entire mine field while under heavy enemy fire . He was killed in action six days later . - Hiroshima is perhaps best known as the first city in history to be targeted by a nuclear weapon when the United States Army Air Forces (USAAF) dropped an atomic bomb on the city (and later on Nagasaki) at 8:15a.m. on August 6, 1945, near the end of World War II. - The Battle of Iwo Jima (19 February 26 March 1945) was a major battle in which the United States Marine Corps landed on and eventually captured the island of Iwo Jima from the Japanese Imperial Army during World War II. The American invasion, designated Operation Detachment, had the goal of capturing the entire island, including the three Japanese-controlled airfields (including the South Field and the Central Field), to provide a staging area for attacks on the Japanese main islands. This five-week battle comprised some of the fiercest and bloodiest fighting of the War in the Pacific of World War II. What object entity has the relation of 'military branch' with the subject 'ross f. gray'? Choices: - aircraft - army - united states army air forces - united states marine corps

Ans:
united states marine corps