Flash partitions for nRF54L15

I am working on nRF54L15 and I want to store some user data in flash and for that I want to define the partitions.

I have selected the Target: nrf54l15dk/nrf54l15/cpuapp/ns and I am exploring the nvs  example.

When I check the Memory report I found multiple partitions defined on same address as attached in image. I tried to find where this is defined but not found it. Can anyone help me understand this partitions and let me know where it is defined?

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