Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) Mariella Azzato sees her staff thinning almost daily in Venezuela. Over 430 professors, assistants and faculty have left the University of Simon Bolivar, in Caracas, since 2015, according to Azzato, the university's vice rector of administration. The public university is widely considered one of Venezuela's best, yet more than a third of the faculty have left in three years. The vast majority of professors are leaving in search of better lives in other countries as Venezuela dives deeper into an economic and humanitarian crisis punctuated by a government many, including President Trump, deem a dictatorship. "A moment is going to arrive when there's isn't anyone," Azzato laments. "There's an exodus of the most talented professors to other countries."Professors seek better lives in other countries as Venezuela dives deeper into crisisOver 39,000 Venezuelans sought asylum around the world in the first half of this year, UN report says 
 Question:Some _ cross the border to buy food, toiletries and other essentials and then return the same day to Venezuela.

Venezuela