Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

[EX Q]: Parkinson's disease is the most common neurodegenerative movement disorder. The motor impairments of Parkinson's disease are caused by the loss of dopaminergic neurons in the substantia nigra and associated with the appearance of fibrillar aggregates of -synuclein (-syn) called Lewy bodies. Approximately 90% of -syn deposited in Lewy bodies is phosphorylated at serine 129 (Ser129). In contrast, only 4% or less of total -syn is phosphorylated at this residue in the normal brain. This suggests that the accumulation of Ser129-phosphorylated -syn leads to the formation of Lewy bodies and dopaminergic neurodegeneration in Parkinson's disease. Our laboratory and others have performed experiments using in vivo models of Parkinson's disease to elucidate the role of increased Ser129 phosphorylation in -syn neurotoxicity. However, there has been a lack of consistency among these models. In this review, we summarize the main findings regarding the relationship between Ser129 phosphorylation and -syn neurotoxicity, and examine the differences among models. We further discuss the role of Ser129 phosphorylation in -syn aggregation and the future directions to test the potential of Ser129 phosphorylation as a therapeutic target for slowing the progression of Parkinson's disease.
[EX A]: Which residue of alpha-synuclein was found to be phosphorylated in Lewy bodies?

[EX Q]: Hoping to rebound from a tough loss to the Patriots, the Bills would play their Week 2 home opener in an interconference duel with the Tampa Bay Buccaneers. This would be the first time that Buffalo ever hosted Tampa Bay in a regular season game, having played a preseason game with each other in 1977. In the first quarter, the Bills came out firing as quarterback Trent Edwards completed a 32-yard touchdown pass to wide receiver Lee Evans, safety Donte Whitner returning an interception 76 yards for a touchdown and kicker Rian Lindell making a 31-yard field goal. The Buccaneers would get on the board in the second quarter as quarterback Byron Leftwich completed a 42-yard touchdown pass to tight end Kellen Winslow, while Buffalo replied with Lindell getting a 43-yard field goal. Tampa Bay would close out the half as Leftwich completed an 8-yard touchdown pass to running back Carnell "Cadillac" Williams. After a scoreless third quarter, the Bills began to pull away as Lindell got a 43-yard field goal and Edwards completed a 43-yard touchdown pass to wide receiver Terrell Owens. The Buccaneers tried to rally as Leftwich completed a 6-yard touchdown pass to tight end Jerramy Stevens (with a failed two-point conversion), yet Buffalo closed out the game with Lindell nailing a 20-yard field goal. With the win, the Bills improved to 1-1.
[EX A]: Who won against the Bills before this game?

[EX Q]: A change in an objects motionsuch as Xander speeding up on his scooteris called acceleration. Acceleration occurs whenever an object is acted upon by an unbalanced force. The greater the net force acting on the object, the greater its acceleration will be, but the mass of the object also affects its acceleration. The smaller its mass is, the greater its acceleration for a given amount of force. Newtons second law of motion summarizes these relationships. According to this law, the acceleration of an object equals the net force acting on it divided by its mass. This can be represented by the equation: Acceleration = Net force Mass or a = F m This equation for acceleration can be used to calculate the acceleration of an object that is acted on by a net force. For example, Xander and his scooter have a total mass of 50 kilograms. Assume that the net force acting on Xander and the scooter is 25 Newtons. What is his acceleration? Substitute the relevant values into the equation for acceleration: F = 25 N = 0.5 N a= m 50 kg kg The Newton is the SI unit for force. It is defined as the force needed to cause a 1-kilogram mass to accelerate at 1 m/s2 . Therefore, force can also be expressed in the unit kg m/s2 . This way of expressing force can be substituted for Newtons in Xanders acceleration so the answer is expressed in the SI unit for acceleration, which is m/s2 : 2 0.5 kgm/s a = 0.5kgN = = 0.5 m/s2 kg Q: Why are there no kilograms in the final answer to this problem? A: The kilogram units in the numerator and denominator of the fraction cancel out. As a result, the answer is expressed in the correct SI units for acceleration. Its often easier to measure the mass and acceleration of an object than the net force acting on it. Mass can be measured with a balance, and average acceleration can be calculated from velocity and time. However, net force may be a combination of many unseen forces, such as gravity, friction with surfaces, and air resistance. Therefore, it may be more useful to know how to calculate the net force acting on an object from its mass and acceleration. The equation for acceleration above can be rewritten to solve for net force as: Net Force = Mass Acceleration, or F=ma Look at Xander in the Figure 1.1. Hes riding his scooter down a ramp. Assume that his acceleration is 0.8 m/s2 . How much force does it take for him to accelerate at this rate? Substitute the relevant values into the equation for force to find the answer: F = m a = 50 kg 0.8 m/s2 = 40 kg m/s2 , or 40 N Q: If Xander and his scooter actually had a mass of 40 kg instead of 50 kg, how much force would it take for him to accelerate at 0.8 m/s2 ?
[EX A]:
for a given net force, an object will accelerate less if it has a greater