How should I answer the "SLAB BOUNDARY CONDITION MODEL NAME" in the Site:GroundDomain:slab of the IDF editor in EnergyPlus?

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Hello everyone! I'm trying to get Surface temperatures from energyPlus. I tried to use the IDF file because i'm no good with the prompt window (I'm also creating a question in the forum about that). So after creating my 4 floors building, i've also created a slab, but I can't really find a way to answer the "SLAB BOUNDARY CONDITION MODEL NAME". Is it maybe requesting a Bounday condition previously requested by the program? In the InputOutputReference there are 2 examples with the same Boundary condition, but it doesn't work on my case, therefore I think that it's bonded to something I've inserted before.

Thanks in advance!