Teacher: From the given sentence, extract the phrase (often noun or verb) that carries the given relationship. The generated phrase should be present in the sentence.
Teacher: Now, understand the problem? If you are still confused, see the following example:
Given Relationship: 'make', Sentence: 'Jenny made the announcement that her baby was an alien.'
Solution: made
Reason: The output relationship - made, is a correct verb form of the given relationship - make, and it is also used in the given sentence

Now, solve this instance: Given Relationship: 'be celebrate on', Sentence: 'At the Nicaean Council in 325 AD it was decided that Easter would be celebrated on the Sunday after the first full moon on or after the day of the vernal equinox .'
Student:
celebrated