The installation of the SCR, FGD, and ACI control technologies will require the following types of 
The following types are required for the installation of the SCR, FGD, and ACI control technologies.
The following types will hinder the installation of the SCR, FGD, and ACI control technologies.
A man is walking in the mall.
The group of kids are fighting in a tent.
I was wrapped up in doing Bill Sikes's business.
A man crosses the street.
Dogs are in the water.
People are hiding the rags under the gymnasium floor because they are too lazy to throw them away.