The question is: "Explain the nature of any governmental-fund balance sheet classifications related to expenditures." MY question is that I don't know what they are asking. I need direction, please. What do they mean by nature?

I'm not sure what is being asked in the following question: "Explain the nature of any governmental-fund balance sheet classifications related to expenditures." This is from the Contining CAFR problem, Chapter 5, Problem CP, #7. Book is Government and not-for-profit accounitng, 7th edition, Granof et al. ISBN # 978-1-118-98327-0. Thank you!