Instruction: Evaluate the answerability of a question by analyzing the related document, outputting yes if the document contains information addressing the question, and no otherwise.

Input:
Question: How strong is this cover? Would it hold up if an adult stepped on it?
Document: The cover I received is held in place by 8 screws, not 4 as pictured. Kit comes with screws, lid gasket, and grommet for electrical connections. Everything you need for lid installation is included but nothing in the ad or picture gives any indication of this. Lid seems very well made and mates to it's  corresponding Wayne sewage basin perfectly.
I had to replace the sewage pump and the old cover was made of steel. It was very rusty and pieces were falling in the tank. Since I needed to clean the metal out of the tank and no way to salvage the 12 year old metal cover, I opted to change it. This cover had all the necessary pieces included. It had bolts, the rubber gaskets for the pipes and electric cords and was easy to install.
Sump lid cover did arrive faster than I thought and I had my bathroom/laundry room project completed that same weekend! Yes, the photo is incorrect in stating that there are only 4 screws. In my setup I had to actually drill where the original pit holes were because it was not the same manufacturer and was existing already. The screws provided with this lid are shut once so that you can never open it again and that wasn't going to work for me if in case the pump needed to be replaced.
Used this to replace the one I had that was rusting away. Fit was good. Only problem I had with it was that the seals were so tight we couldn't get them to fit back in when we had the pipe in them. We had to get them greased(dish soap) up and slippery to get them back in place and even at that we had to force them in place. But now that it is all together it is great.
Included:- 8 holes (not as pictured)- 8 screws, 8 washers- three grommets (one vent, one outflow, one electrical cord)- one foam sealing tape rollJust what I needed.
Answer: no