input question: David was studying for his chemistry exam. To understand the elements of the periodic table better he categorized them into three groups, cat A, cat B, and cat C. In cat A he placed all the elements with atomic numbers lower than 83. In cat B he put the elements with atomic numbers from 83 to 94. Finally, in cat C he placed the elements with atomic numbers over 94. He found it easier to see their differences after he categorized them. Which category would more likely have stable isotopes, cat A or cat B????
output answer: cat A

input question: John is trying to figure out how the shape of an object affects how it reacts with other elements. For that, he chose two objects, both made of the same element - object A and object B. Object A has a larger surface area, but object B has smaller surface area. He let these objects to react with other reactants to see how the processes work. Which object would be more exposed to the reactants, object A or object B????
output answer: object A

input question: Jeremiah and Alexander are students in a work shop class at their local community college. For their final project, they have to construct a compound machine to carry bricks across a room. Jeremiah's compound machine consists of many simple machines. Alexander's compound machine only consists of a few simple machines. Which person's compound machine will have a larger mechanical advantage????
output answer: Jeremiah's

input question: Two bird islands in the Atlantic Ocean had very different climate changes during the last 5 years. Bone island experienced drought, while Finch island experienced flooding. Which island had more of the big-beaked birds survive????
output answer:
Bone