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.

[Q]: Given Relationship: 'stand for', Sentence: 'MMA stands for Mixed Martial Arts and it is a system in which all types of fighting styles are used to see , which one is best .'
[A]: stands


[Q]: Given Relationship: 'approve', Sentence: 'Some groups of mechanism of Adderall is I want to make it ca n't take the of it There are Donald fda approved generic viagra sildenafil citrate the commercial in prison anyone battling relaxed at the end product did n't stick .'
[A]: approved


[Q]: Given Relationship: 'be city in', Sentence: 'Pink and mystical Fez is one of Morocco 's imperial cities , founded in 808 A.D. by the Moroccan ruler Moulay Idris II .'
[A]:
cities