Span columns with docxTemplate python

I'm having trouble trying to fill in a table row by row using DocxTemplate. I'm only confused on how the template should look like.

This is my python code:

from docxtpl import Docxtemplate

doc = DocxTemplate("Template.docx")
context = {}
table_info = [{start: "A", end: "C"}, {start: "B", end: "C"}, {start:"F", end:"L"}, {start:"B", end:"R"}]
context["table_info"] = table_info

doc.render(context)
doc.save("Finish.docx")

I want the final result to be in a table like this:

| start | end |
|  A    | C   |
|  B    | C   |
|  F    | L   |
|  B    | R   |

Would anyone be willing to show me how I can accomplish this? I saw the dynamic_table_tpl example but I wasn't able to wrap my head around what I'm trying to do. Thanks in advance!

from Span columns with docxTemplate python