# data[].attributes.body
A lever where the effort is located between the fulcrum and the load.
From- Google.com
https://www.google.com/search?q=3rd+class+lever&safe=strict&espv=2&biw=1366&bih=662&site=webhp&source=lnms&sa=X&ved=0ahUKEwj37qaS4ufPAhVFFj4KHXZpAk4Q_AUIBygA&dpr=1#safe=strict&q=3rd+class+lever+definition

# data[].attributes.body
The direction of the effort is opposite of the load.Examples of first class levers include see-saws, crowbars, pliers and scissors. In third class levers, the effort is between the load and the fulcrum. More force is required in a third class lever to move an object.
From- Google.com
https://www.google.com/webhp?sourceid=chrome-instant&ion=1&espv=2&ie=UTF-8#q=2nd+class+lever

# data[].attributes.body
This allows the identification of three classes of levers by the relative locations of the fulcrum, the resistance and the effort: Class 1: Fulcrum in the middle: the effort is applied on one side of the fulcrum and the resistance (or load) on the other side, for example, a seesaw, a crowbar or a pair of scissors.
From- Google.com
https://www.google.com/search?q=first+class+lever&safe=strict&espv=2&biw=1366&bih=662&source=lnms&sa=X&ved=0ahUKEwi3pNjjoefPAhWKeD4KHY53CHsQ_AUIBygA&dpr=1