Negative gearing for investment trust

I've recently dipped back into the market following a house purchase and have come across JP Morgan Emerging Markets Investment Trust PLC.

I have read through some documentation of the trust including factsheet and noticed it currently has negative gearing.

I understand the concept of gearing and have always seen it as a positive figure, however I can't quite get my head around negative gearing.

Any further insight or explanation would be greatly appreciated.

Factsheet can be found here