Need some help with interjections in BG2EE dialogs

Hi, I looked at various ways to code interjections, but I do not seem to understand the gist of it. Using Notepad++ and weidu highlighters, it underlines the "==" when I reference to which dialog, then parsing errors, etc.

Here's the situation: Buliard (PPBBul) - My prefix is PP on Blackwyrm forum- will interject one line in Morda's dialog (PPMorda).

Here's what I wrote:

IF ~~ THEN BEGIN Relics
SAY ~Ugwaerel can access it because of her pinky. It's a relic of Vec...(Buliard tries to shut her down, but came too late).~
INTERJECT_COPY_TRANS PPBul.d @171 PPChain1
== PPBul
IF ~!StateCheck("PPMord",CD_STATE_NOTVALID)~ THEN
~(He spits) Nobody can have those unless they are initiated! So don't even think about it!~
END

That would help me a lot to understand the rest. Thank you for your time!