Successive deed restrictions

[Hayley Chan]

I'm analyzing a property and looking at the deed restrictions. The specific wording on it says, 

"These covenants are to run with the land and shall be binding for a period of twenty-five years from the date hereof; and the end of said period, said restrictions and covenants shall automatically be extended for a successive period of ten years..."

Does this mean 25 years + 10 years + 10 years forever?

OR 

Does this mean 25 years + 10 years, then stop? Totalling 35 years?

I've seen other covenants that say "automatically extended for successive periods of 10 years [unless voted on]." Onviously this one means it renews every 10 years, but the one I'm researching now is worded differently. Looking for advice on interpretation for the first one! Thanks!