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.

Sentence: Pitt spoke out against the Convention of El Pardo which aimed to settle the dispute peacefully .
Question: what might have settled something?
the Convention of El Pardo

Sentence: The facades were covered with fresh multicolor paintwork , greatly enhancing the external appearance of the buildings .
Question: what was covered with something?
The facades

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 constricts something?
the use of a miotic