Table schema:
CREATE TABLE table_name_85 (turbine_vendor VARCHAR, wind_farm VARCHAR, size__mw_ VARCHAR, turbines VARCHAR, county VARCHAR)

Question: Who is the turbine vendor for Meenadreen in Donegal county with less than 6 turbines with a size of 0.85 MW?
SQL: SELECT turbine_vendor FROM table_name_85 WHERE turbines < 6 AND county = "donegal" AND size__mw_ = "0.85" AND wind_farm = "meenadreen"