Artificial intelligent assistant

Changing が to の outside of relative clauses A girl asks her mother why she can't keep a catalogue and is told: > **** > I'm going to buy the year end presents tomorrow afternoon, so I'll use that (catalogue) as a reference. How should I parse the part in bold? Why is it not **** I'm familiar with the idea of replacing with in relative clauses to move the emphasis away from the thing marked by . But, the only way I can make a relative clause is if the at the end of the sentence is something other than the explanatory , which seems unlikely. What am I failing to understand?

I think A()B is translated as A consult(refer to) B like ( I referred to this book).

I think ACB is translated as "A refer to C for B" like ( I refer to this picture for my picture).

xcX3v84RxoQ-4GxG32940ukFUIEgYdPy 4b3f65a8d60ad43a2145103e4ce292d6