In this task, you're given passages that contain mentions of names of people, places, or things. Some of these mentions refer to the same person, place, or thing. Your job is to write questions that evaluate one's understanding of such references. Good questions are expected to link pronouns (she, her, him, his, their, etc.) or other mentions to people, places, or things to which they may refer. Do not ask questions that can be answered correctly without understanding the paragraph or having multiple answers. Avoid questions that do not link phrases referring to the same entity. For each of your questions, the answer should be one or more phrases in the paragraph, and it should be unambiguous.

Passage: In 1981 Afghanistan, a Soviet tank unit viciously attacks a Pashtun village harboring a group of mujahideen fighters. Following the assault, one of the tanks—commanded by ruthless commander Daskal (George Dzundza)—takes a wrong turn through a mountain pass and enters a blind valley. Taj returns to discover the village destroyed, his father killed, and his brother martyred by being crushed under Daskal's tank. As the new khan following his brother's death, Taj is spurred to seek revenge by his cousin Moustafa, an opportunistic scavenger. Together they lead a band of mujahideen fighters into the valley to pursue Daskal's tank (which they call "The Beast"), counting on their captured RPG-7 anti-tank weapon to destroy it.
Lost, isolated, and with their radio damaged in the attack, the tank crew set out to find Kandahar Road and return to Soviet lines. While camping for the night, Afghan communist crewman Samad educates the reluctant tank driver, Konstantin Koverchenko, about the Pashtun people's code of honour, Pashtunwali; particularly nanawatai, which requires that an enemy is to be given sanctuary if he asks.
What is the name of the crewman who educates the reluctant tank driver?