How to convert a database dataset to item set dataset

Hi

I want to convert my database to item set form. For example assume table:

Tid      Item

 1           1

 1           2

 2           1

 2           3

I want it changes to:

Tid  Item1    Item2    Item3

 1     true       true      false

 2     true       false     true

How can I do that in rapidminer studio?