I have the following tables defined in a TOML and it seems to be fine.

[a.b.c; var1=value1]
  key="123"

[d.e.f; var2=value2]
    "/a.b.c; var1=Value1"

In the table sections, within the brackets after the section names are given, a key vale is defined preceded by a semicolon. i.e: var1=value1 and var2=value2

Second, in the [d.e.f; var2=value2] section, this is given –> "/a.b.c; var1=Value1".
I was told that this is inheritance; means this table inherits all the key-value pairs from [a.b.c; var1=Value1] section.

I searched the official documentation page of TOML and I don’t find these concepts.
Could someone please let me know how these two become syntactically correct in TOML specification.

Thanks