This task is about creating an unanswerable question based on a given passage. Construct a question that looks relevant to the given context but is unanswerable. Following are a few suggestions about how to create unanswerable questions:
(i) create questions which require satisfying a constraint that is not mentioned in the passage
(ii) create questions which require information beyond what is provided in the passage in order to answer
(iii) replace an existing entity, number, date mentioned in the passage with other entity, number, date and use it in the question
(iv) create a question which is answerable from the passage and then replace one or two words by their antonyms or insert/remove negation words to make it unanswerable.

Example Input: Passage: The origins of the Samoans are closely studied in modern research about Polynesia in various scientific disciplines such as genetics, linguistics and anthropology. Scientific research is ongoing, although a number of different theories exist; including one proposing that the Samoans originated from Austronesian predecessors during the terminal eastward Lapita expansion period from Southeast Asia and Melanesia between 2,500 and 1,500 BCE. The Samoan origins are currently being reassessed due to new scientific evidence and carbon dating findings from 2003 and onwards.
Example Output: What scientific disciplines are being used to study where the Austronesian people came from?

Example Input: Passage: New chemical glass compositions or new treatment techniques can be initially investigated in small-scale laboratory experiments. The raw materials for laboratory-scale glass melts are often different from those used in mass production because the cost factor has a low priority. In the laboratory mostly pure chemicals are used. Care must be taken that the raw materials have not reacted with moisture or other chemicals in the environment (such as alkali or alkaline earth metal oxides and hydroxides, or boron oxide), or that the impurities are quantified (loss on ignition). Evaporation losses during glass melting should be considered during the selection of the raw materials, e.g., sodium selenite may be preferred over easily evaporating SeO2. Also, more readily reacting raw materials may be preferred over relatively inert ones, such as Al(OH)3 over Al2O3. Usually, the melts are carried out in platinum crucibles to reduce contamination from the crucible material. Glass homogeneity is achieved by homogenizing the raw materials mixture (glass batch), by stirring the melt, and by crushing and re-melting the first melt. The obtained glass is usually annealed to prevent breakage during processing.
Example Output: What meterial is useful in glassmaking because of its hydroxides?

Example Input: Passage: Harvard has several athletic facilities, such as the Lavietes Pavilion, a multi-purpose arena and home to the Harvard basketball teams. The Malkin Athletic Center, known as the "MAC", serves both as the university's primary recreation facility and as a satellite location for several varsity sports. The five-story building includes two cardio rooms, an Olympic-size swimming pool, a smaller pool for aquaerobics and other activities, a mezzanine, where all types of classes are held, an indoor cycling studio, three weight rooms, and a three-court gym floor to play basketball. The MAC offers personal trainers and specialty classes. It is home to Harvard volleyball, fencing and wrestling. The offices of several of the school's varsity coaches are also in the MAC.
Example Output:
At what building do Olympic athletes train?