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: World Environment Day ( WED ) is celebrated every year on June 5 .
Student:
World Environment Day ( WED ) is celebrated on the 5th of June every year , and is the United Nation 's principal vehicle for encouraging awareness and action for the protection of our environment .