How to select a suitable hierarchy from business content ?

Gurus,

I am new to BW and need to extract some sales data from R/3 into BW. Sales department is structured as Sales region ---> Sales person. It's a two level hierarchy maintained in R/3.

I need to extract this data and want to explore for any available datasource in business content and use it. Can someone tell me how to do this ?

Points guaranteed.

Abhishek