What is the best way to create issues in hierarchy with blocker links

[Eric Collins]

I have a situation that requires assistance :)

The goal is to create the following via a post function:

Initiative

- Epic 1

-- task 1

-- task 2

- Epic 2

-- task 3 (blocked by tasks 1 and 2)

-- task 4 (blocked by tasks 1 and 2)

- Epic 3

-- task 5 (blocked by tasks 1, 2, 3, 4)

-- task 6 (blocked by tasks 1, 2, 3, 4)

The linking is throwing me off.