Jack

I enjoy playing Connections sometimes, gives me a challenge and makes me think harder, but sometimes it does become a little tedious because of how the words sometimes feel like they belong in two different categories. For example, if some of the words are Muscle, Bone, Tissue, and Vein you may assume they all connect because they are a part of the human body. However Bone might be in another group with words like Pack, Yard, Track because they fall under the "Back ______ " category. This is what confuses me, otherwise i still enjoy it!