I was in the library the other day, and a strange fellow sat down next to me. We chatted for a bit about random things, and then he mentioned something about words being heavy. I was confused as we weren't talking about any subject that was particularly heavy, so I asked him to explain. He replied that some words weigh more than others. I agreed with him, and asked how he measured the weight of words. He smiled and said, "I won't tell you how, you must discover that for yourself. But, I will help you. Your first clue is that HEAVY weighs the same as LIGHT." Since I was bored, I decided to play his game, but even with the other clues he gave me, I couldn't figure it out, and now it's bugging me. Can you help me figure out how he determines the weight of words?
Other clues received (Bold word indicated that it is heavier, no bold word indicates that both weigh the same).
He came back again today to see if I had figured it out yet. I had not, so he asked if I need some more clues. I said yes, but give me a bit to think about which clues I wanted to ask. What words should I weigh? I can weigh 6 sets of words today.