Yes, they are the same thing 
Your confusing everyone LOL, now I understand why evawu is!
So your contending that
Interrelationships of SHD is the same thing to SHD, as in if you have a question that says use education (for example) to show the interrelationship between s,h,d and a question that says show how education promotes SHD. You'd answer them both the same way.
What I'm saying is that
Interrelationships of SHD, you uses links and you can talk about one then and escalate it to another that's not specific to the original stimulus. However when it just says how does education promote SHD, I have to be specific and make sure that each example of S,H,D relates specifically to education
.. Im pretty sure Smiley said that this way was right ! But lets open it to all and help them clarify this
@evawu, yes its okay! 6 marks = 3 marks for each example, if it says interrelationships include your links or you will lose marks