Instruction: Carefully assess the user's review for any strong expressions of sentiment, either positive or negative. Based on your analysis, select the most fitting sentiment option from the provided list as output.

Input:
The Instruction and recipe guide that comes with the cooker has a whole section on cooking grains such as rice, steel cut oats, bulgar, etc.  HOWEVER you can only cook grains by putting the grain and cooking water in a bowl that you cover with aluminum foil, then put into the cooker with more water, sitting on a rack.  I cannot for the life of my figure out how to fit a foil-covered bowl big enough for a cup of brown rice plus 1.5 cups of water, sitting about an inch off the bottom of the cooker on a rack, into the cooker, while still allowing the vent/cover lock to operate normally.  The piston part of this valve dangles through the lid down into the cooker when the valve is open, but needs to be able to move up into the sealed position once steam reaches a certain pressure.  There is a plastic washer on the bottom of the piston.  The piston and washer hit the bowl and/or foil, making it hard to get the cover on right.  Then, even if you can get the cover on, the plastic washer catches on the bowl or foil as pressure increases, preventing the valve piston from moving upwards and sealing.  Result: you cannot get pressure in the pressure cooker (plus lots of water and steam jets out of the open valve hole).

I've just wasted 30 minutes tinkering with this awkward setup.  Had I started my rice in my rice cooker, it would have been almost done by now.  But no, dinner tonight will be delayed for at least another 50 minutes and I have the pressure cooker, bowl, foil lid, etc. to cleanup and put away on top of the rice cooker.  Thanks, Presto, for leading me on about using the pressure cooker for grains.  I don't appreciate have my time wasted nor experiencing such frustration when I'm just trying to get dinner on the table.  Please revise your guide -- it is inaccurate and someone could get hurt by escaping steam and boiling water from the cover lock that will not seal.

Prospective buyers, DO NOT get this cooker if you think you can use it for grains.  Get a rice cooker, or one of those dual duty rice and pressure cookers, instead.  This cooker is too small.

Options:
A: very positive
B: positive
C: neutral
D: negative
E: very negative
Answer: C: neutral