Removing watermark from an image using bbox parameters

I am using a Computer Vision cloud service to detect watermarks on a set of images. The cloud service returns the location of the watermark in form of Bounding Box (bbox). For example, one output looked like this:

  "text": "Watermarked Text",
  "words": [
    {
      "boundingBox": [
        889,
        1043,
        939,
        1044,
        939,
        1076,
        888,
        1075
      ]

Bounding Box parameters have been previously explained on Stack Overflow.

My goal is to remove the watermark from the image by providing the bbox parameters as an input to a tool that can remove watermarks.

I think OpenCV-Python is a great fit for this task. I checked their Image Processing API but couldn't find any solutions. The closest solution I could find was inpainting.

I'm wondering what is the best way to achieve my task using OpenCV? I'd be grateful for any help.

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