Three construction workers are sitting around a fenced in area reading next to a sand castle .
The construction workers are walking through the site , checking for errors .
Three construction workers are sitting around a fenced in area reading next to a sand castle.
The construction workers are walking through the site, checking for errors.
sitting and walking are not the same action  around a fenced in area is not same as through the site  reading is not same as checking for errors
sitting and walking are not the same action around a fenced in area is not same as through the site reading is not same as checking for errors