Erase object using inpainting

[fefespn]

I have a question and maybe it's general question for using diffusion models to erase object.
So to erase object in this pipeline we need to know the background description and add this description as prompt for inpaint model then we may get erasing the object.
let's assume we want to do a general erase model, what is the prompt ? can we do something else ?
can we put the embedding off the image instead of the imbedding of the prompt to do the erase ?
Thanks.