Is this a Restriction?

Hi all, I am reading a contract of sale for a property I wanted to purchase. It he property is in nsw

The Map of Subdivision show an easement for a drainage drain and furthermore a patch of area "U970101 Covenant" and "U970102 Covenant".

Does anyone have any idea what these areas "U970101 Covenant" and "U970102 Covenant" mean? Please shed some light

This land looks like it can be subdivided in the future based on land size so I really don't want to have anything that may restrict this development.

Thank you in advance...