Definition: In this task you are given a list of triplets of the form [subject, predicate, object] and the output should be a question based on the triplets but with the subject and/or object replaced with blanks (represented using two or more consecutive underscores). Triplet values encompassed in [*] are special tokens that can be replaced with synonyms. The objective is to construct a question in a manner that (a) captures the facts specified in at least one of the triplets, and (b) ideally contains a limited number of blanks such that it is a well-formed question that is easy to answer. A blank can represent a single word or a phrase.
Input: [['SFP 250', 'TRACK', 'Kansas Speedway, Kansas City'], ['3', 'RACE_TITLE', 'SFP 250'], ['[TABLECONTEXT]', 'NUMBER', '3'], ['[TABLECONTEXT]', '[TITLE]', '2014 NASCAR Camping World Truck Series'], ['3', 'DATE', 'May 9']]

The _____ at the Kansas Speedway in Kansas City that took place on May 9th was the _____rd event in the 2014 NASCAR Camping World Truck Series.