Teacher:In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.
Teacher: Now, understand the problem? Solve this instance: Sentence: The tank is known as the SV-001 , which not only increases the player 's offense , but considerably adds to their defense . 
 Question: what is something known  as?
Student:
SV-001