For the three Lewis structures shown below, two OR three of the structures shown can be considered resonance forms of each other. One of the structures may or may not be a resonance contributor of the other two. For each structure shown, indicate whether it is the best resonance contributor (of the resonance forms present), the worst resonance contributor (of the resonance forms present), intermediate quality resonance contributor (only if all 3 are resonance structures), or not a resonance contributor (compared to the other two). Note: if only two of the structures are resonance forms, there will not be an “intermediate quality” contributor; only a “best” and a “worst”. Indicate your choice by placing an “X” in the appropriate box.