Does PNK have 3 phosphatase activity?

Excuse me, I was reading about PNK and I came across a statement that mentioned its phosphatase activity. I was wondering if you could clarify something for me - does PNK indeed possess three distinct phosphatase activities, or is this a misinterpretation of the literature? If it does indeed have three such activities, could you perhaps elaborate on what they are and how they function within the cellular context? I'm eager to gain a deeper understanding of this fascinating enzyme.