Information Retrieval - Old Questions

2. Assume that document Space is defined by four terms: Network, CSIT, Nepal, TU, and Graduate. 

And we have three documents containing the following terms:

Doc1: CSIT Nepal

Doc2: TU CSIT

Doc3: CSIT TU Nepal

If the Query is "CSIT Nepal", find top 2 document retrieved by Boolean space model.(6)