Student A:The season consisted of 20 episodes, in which ten episodes aired in the summer of 2016, with the remaining ten episodes aired from April 2017. The season's premiere aired on June 21, 2016, on Freeform. Production and filming began in the end of March 2016, which was confirmed by showrunner I. Marlene King. The season premiere was written by I. Marlene King and directed by Ron Lagomarsino. King revealed the title of the premiere on Twitter on March 17, 2016. On August 29, 2016, it was confirmed that this would be the final season of the series.

Answer this question based on the passage: how many episodes of pretty little liars season 7b?
Student B:OK... This is the relevant information: The season consisted of 20 episodes, in which ten episodes aired in the summer of 2016, with the remaining ten episodes aired from April 2017.
ten.

Problem:Lens speed refers to the maximum aperture diameter, or minimum f-number, of a photographic lens. A lens with a larger maximum aperture (that is, a smaller minimum f-number) is called a "fast lens" because it can achieve the same exposure with a faster shutter speed. Conversely, a smaller maximum aperture (larger minimum f-number) is "slow" because it delivers less light intensity and requires a slower (longer) shutter speed.

What does the speed of a lens mean?
Solution:OK... The relevant sentence in the passage is: Lens speed refers to the maximum aperture diameter, or minimum f-number, of a photographic lens.
the maximum aperture diameter , or minimum f - number , of a photographic lens.

Student A:Context: "The Great Gig in the Sky" is the fifth track on The Dark Side of the Moon, the 1973 album by the English progressive rock band Pink Floyd. The song features music by Richard Wright and non-lexical vocals by Clare Torry.

Question: who sang on pink floyd great gig in the sky?
Student B:OK... To answer this question, we should know that: The song features music by Richard Wright and non-lexical vocals by Clare Torry.
Clare Torry.

Problem:Passage: Peptidoglycan, also known as murein, is a polymer consisting of sugars and amino acids that forms a mesh-like layer outside the plasma membrane of most bacteria, forming the cell wall. The sugar component consists of alternating residues of β-(1, 4) linked N-acetylglucosamine (NAG) and N-acetylmuramic acid (NAM). Attached to the N-acetylmuramic acid is a peptide chain of three to five amino acids. The peptide chain can be cross-linked to the peptide chain of another strand forming the 3D mesh-like layer. Peptidoglycan serves a structural role in the bacterial cell wall, giving structural strength, as well as counteracting the osmotic pressure of the cytoplasm. A common misconception is that peptidoglycan gives the cell its shape; however, whereas peptidoglycan helps maintain the structural strength of the cell, it is actually the MreB protein that facilitates cell shape. Peptidoglycan is also involved in binary fission during bacterial cell reproduction.

Question: Based on this passage, where is peptidoglycan found in a bacterial cell?
Solution:OK... The relevant information is: Peptidoglycan, also known as murein, is a polymer consisting of sugars and amino acids that forms a mesh-like layer outside the plasma membrane of most bacteria, forming the cell wall.
outside the plasma membrane.

Student A:Passage: Examples of this form of articulation are found in the hip, where the rounded head of the femur (ball) rests in the cup-like acetabulum (socket) of the pelvis, and in the glenohumeral joint of the shoulder, where the rounded head of the humerus (ball) rests in the cup-like glenoid fossa (socket) of the shoulder blade. The shoulder includes a sternoclavicular articulation joint.

Question: Based on this passage, where are ball and socket joints found in the human body?
Student B:OK... The relevant information is: Examples of this form of articulation are found in the hip, where the rounded head of the femur (ball) rests in the cup-like acetabulum (socket) of the pelvis, and in the glenohumeral joint of the shoulder, where the rounded head of the humerus (ball) rests in the cup-like glenoid fossa (socket) of the shoulder blade.
the hip , where the rounded head of the femur ( ball ) rests in the cup - like acetabulum ( socket ) of the pelvis , and in the glenohumeral joint of the shoulder , where the rounded head of the humerus ( ball ) rests in the cup - like glenoid fossa ( socket ) of the shoulder blade.

Student A:Passage: Kristen Joy Schaal (/ ʃɑːl /; born January 24, 1978) is an American actress, voice actress, comedian and writer. She is best known for her roles of Mel in Flight of the Conchords, the over-sexed nurse Hurshe Heartshe on The Heart, She Holler, Louise Belcher in Bob's Burgers, Mabel Pines in Gravity Falls, and Carol in The Last Man on Earth.

Question: Based on this passage, who plays mabel's voice on gravity falls?
Student B:
OK... The important part for answering this question is: She is best known for her roles of Mel in Flight of the Conchords, the over-sexed nurse Hurshe Heartshe on The Heart, She Holler, Louise Belcher in Bob's Burgers, Mabel Pines in Gravity Falls, and Carol in The Last Man on Earth.
Kristen Joy Schaal.