This task is about reading the given passage and construct a question about the information present in the passage. Construct a question in such a way that (i) it is unambiguous, (ii) it is answerable from the passage, (iii) its answer is unique (iv) its answer is a continuous text span from the paragraph. Avoid creating questions that (i) can be answered correctly without actually understanding the paragraph and (ii) uses same words or phrases given in the passage.

Input: Consider Input: The first real progress toward a modern understanding of nervous function, though, came from the investigations of Luigi Galvani, who discovered that a shock of static electricity applied to an exposed nerve of a dead frog could cause its leg to contract. Since that time, each major advance in understanding has followed more or less directly from the development of a new technique of investigation. Until the early years of the 20th century, the most important advances were derived from new methods for staining cells. Particularly critical was the invention of the Golgi stain, which (when correctly used) stains only a small fraction of neurons, but stains them in their entirety, including cell body, dendrites, and axon. Without such a stain, brain tissue under a microscope appears as an impenetrable tangle of protoplasmic fibers, in which it is impossible to determine any structure. In the hands of Camillo Golgi, and especially of the Spanish neuroanatomist Santiago Ramón y Cajal, the new stain revealed hundreds of distinct types of neurons, each with its own unique dendritic structure and pattern of connectivity.

Output: Who found out that a shock of electricity to an exposed nerve of a dead frog caused contractions?


Input: Consider Input: On the other hand, many of the medieval buildings once situated within the town walls are now in ruins or have disappeared altogether. From successive incarnations of the motte and bailey castle, only a section of the bailey wall remains today, lying just off Castle Way. The last remains of the Franciscan friary in Southampton, founded circa 1233 and dissolved in 1538, were swept away in the 1940s. The site is now occupied by Friary House.

Output: The only remaining piece of the motte and bailey castle can be seen near what modern Southampton street?


Input: Consider Input: The Vestals were a public priesthood of six women devoted to the cultivation of Vesta, goddess of the hearth of the Roman state and its vital flame. A girl chosen to be a Vestal achieved unique religious distinction, public status and privileges, and could exercise considerable political influence. Upon entering her office, a Vestal was emancipated from her father's authority. In archaic Roman society, these priestesses were the only women not required to be under the legal guardianship of a man, instead answering directly to the Pontifex Maximus.


Output: How many Vestals were there in Rome?