## question
The level of centralization in decision-making in planning depends on the specific type of planning mechanism employed. As such, one can distinguish between centralized planning and decentralized planning. An economy primarily based on central planning is referred to as a planned economy. In a centrally planned economy the allocation of resources is determined by a comprehensive plan of production which specifies output requirements. Planning may also take the form of directive planning or indicative planning.

Answer this question: a centrally planned economy most often refers to an economic system that is under comprehensive?
## answer
The relevant information is: In a centrally planned economy the allocation of resources is determined by a comprehensive plan of production which specifies output requirements.
So the answer must be plan of production which specifies output requirements

## question
Context: In electrocardiography, the PR interval is the period, measured in milliseconds, that extends from the beginning of the P wave (the onset of atrial depolarization) until the beginning of the QRS complex (the onset of ventricular depolarization); it is normally between 120 and 200ms in duration. The PR interval is sometimes termed the PQ interval.

Question: what is the significance of the pq interval?
## answer
To answer the question, consider the following: In electrocardiography, the PR interval is the period, measured in milliseconds, that extends from the beginning of the P wave (the onset of atrial depolarization) until the beginning of the QRS complex (the onset of ventricular depolarization); it is normally between 120 and 200ms in duration.
So the answer must be the period , measured in milliseconds , that extends from the beginning of the P wave ( the onset of atrial depolarization ) until the beginning of the QRS complex ( the onset of ventricular depolarization )

## question
The State Fair of Texas is an annual state fair held in Dallas at historic Fair Park. The fair has taken place every year since 1886 except for varying periods during World War I and World War II. It usually begins the last Friday in September and ends 24 days later. While the State Fair of Texas considers quantifying its official attendance figures "too much of a hassle", it is still consistently recognized as one of the most highly attended and best state fairs in America as well as Dallas's signature event.

What city is the texas state fair in?
## answer
To answer the question, consider the following: The State Fair of Texas is an annual state fair held in Dallas at historic Fair Park.
So the answer must be Dallas

## question
The Milky Way is a barred spiral galaxy with a diameter between 150,000 and 200,000 light-years (ly). It is estimated to contain 100 -- 400 billion stars. There are probably at least 100 billion planets in the Milky Way. The Solar System is located within the disk, 26,490 (± 100) light-years from the Galactic Center, on the inner edge of the Orion Arm, one of the spiral-shaped concentrations of gas and dust. The stars in the innermost 10,000 light-years form a bulge and one or more bars that radiate from the bulge. The galactic center is an intense radio source known as Sagittarius A *, likely a supermassive black hole of 4.100 (± 0.034) million solar masses.

Where is our solar system in the milkyway?
## answer

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The relevant sentence in the passage is: The Solar System is located within the disk, 26,490 (± 100) light-years from the Galactic Center, on the inner edge of the Orion Arm, one of the spiral-shaped concentrations of gas and dust.
So the answer must be within the disk , 26,490 ( ± 100 ) light - years from the Galactic Center , on the inner edge of the Orion Arm