Help needed with forming a transitive relation

I ran fuzzy mapping in alteryx and it generated a table with two IDs, where ID1 is the parent ID and ID2 is the ID that matches with ID1. However, the table has lot of circular references. As an example:

ID1 ID2
1 B
2 B
2 D
5 D
6 E
7 E
2 F
1 H
8 K
2 K

I want final table where all the circular references should be removed, essentially the Output for above table should be

ID1 ID2
1 B
1 2
1 D
1 5
6 E
6 7
1 F
1 H
1 K
1 8

I thank you all in advance for helping me out in generating the solution.