I have a suspicion... I haven't been able to fully track down the lead yet, but I think it's a solid lead.

A Dutch hard-rock band called Oswald released an album titled Who Am I Supposed To Kill? in 1992 (click). Their opening track was called "You Can't Eat Money," and somewhere on the album the band used an excerpt from a singer named Tatjana van Horen and a track called "Mother Earth."

The band was from Venlo; a woman named Tatjana van Horen is documented here as a singer from Venlo who lived from 1969-2002. Feels likely to be the same person.

So my working assumption is that both bands borrowed the same lady's song, "Mother Earth," as the introduction. No conformation yet, but it's a theory.