In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.

[Q]: Sentence: Then , built by the LNWR , the branch line to Ashbourne was opened in 1899 . 
 Question: what was  built?
[A]: branch line to Ashbourne


[Q]: Sentence: A nonsurgical alternative involves the use of a miotic to constrict the pupil and prevent the lens from luxating into the anterior chamber . 
 Question: what is  prevented?
[A]: the lens from luxating into the anterior chamber


[Q]: Sentence: Under an Elizabethan statute , the Erection of Cottages Act 1588 , the cottage had to be built with at least of land . 
 Question: what did something have  to do?
[A]:
be built with at least of land