Teacher:In this task, we ask you to elaborate the sentence without changing its general meaning. You can do so by explaining further the input sentence, using more precise wording, adding qualifiers and auxiliary information etc.
Teacher: Now, understand the problem? Solve this instance: The St. Louis Lambert International Airport is an airport .
Student:
St. Louis Lambert International Airport , formerly Lambert – St. Louis International Airport , is an international airport serving St. Louis , Missouri , United States .