We know the coco contained no strychnine. 
It is known that the coco contained no strychnine.
it is certain that the coco contained strychnine
Some people are eating lunch in a cafeteria sitting in chairs.
They'll use the telegraph, so go on the direct path.
Yes, none of them.
A man in a football jersey plays football
They play a shell game.
There is a campsite near the lake where the mosquitoes are terrible, but in the mountain there is a man made reservoir with no bugs.