In this task, you are given a question and a context passage. You have to answer the question based on the given passage.
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Question: What residential units have revitalized New Haven?, Context: Since approximately 2000, many parts of downtown New Haven have been revitalized, with new restaurants, nightlife, and small retail stores. In particular, the area surrounding the New Haven Green has experienced an influx of apartments and condominiums. In recent years, downtown retail options have increased with the opening of new stores such as Urban Oufitters, J Crew, Origins, American Apparel, Gant Clothing, and an Apple Store, joining older stores such as Barnes & Noble, Cutlers Records, and Raggs Clothing. In addition, downtown's growing residential population will be served by two new supermarkets, a Stop & Shop just outside downtown and Elm City Market located one block from the Green. The recent turnaround of downtown New Haven has received positive press from various periodicals.

Answer: apartments and condominiums


Question: How often were people arrested before 1968 during a seizure?, Context: In Terry v. Ohio (1968) the court divided seizure into two parts, the investigatory stop and arrest. The court further held that during an investigatory stop a police officer's search " [is] confined to what [is] minimally necessary to determine whether [a suspect] is armed, and the intrusion, which [is] made for the sole purpose of protecting himself and others nearby, [is] confined to ascertaining the presence of weapons" (U.S. Supreme Court). Before Terry, every police encounter constituted an arrest, giving the police officer the full range of search authority. Search authority during a Terry stop (investigatory stop) is limited to weapons only.

Answer: every police encounter constituted an arrest


Question: What is moved when hydrogen ions are pumped into the soil?, Context: Plants uptake essential elements from the soil through their roots and from the air (consisting of mainly nitrogen and oxygen) through their leaves. Green plants obtain their carbohydrate supply from the carbon dioxide in the air by the process of photosynthesis. Carbon and oxygen are absorbed from the air, while other nutrients are absorbed from the soil. Nutrient uptake in the soil is achieved by cation exchange, wherein root hairs pump hydrogen ions (H+) into the soil through proton pumps. These hydrogen ions displace cations attached to negatively charged soil particles so that the cations are available for uptake by the root. In the leaves, stomata open to take in carbon dioxide and expel oxygen. The carbon dioxide molecules are used as the carbon source in photosynthesis.

Answer:
cations