PENTAN BS02 detail wording

"while you control A COMBINATION OF 3 YELLOW SPIRITS OR NEXUSES"... and so on,

my question is simple but totally important:

does effect apply only AS LONG i have EXACTLY 3 y. spirits/nexus on my field,

or is it to understand as "if you have at least 3 y. spirits/nexuses" ?

because it makes huge difference in my test duels if i use the effect like ["if you have at least 3 y. spirits/nexuses"].

Well, I had a look at the Japanese version for the card and it's written "3 or more", which was not included in the English version.

PERFECT THNX:-)
so i played the combo correct 5 minutes ago;-)