The program also doesn't seem to understand that kg and g are measuring the same thing. I added the fact that an iPhone weighs 137 grams, and if I search for 13

The program also doesn't seem to understand that kg and g are measuring the same thing. I added the fact that an iPhone weighs 137 grams, and if I search for 137 g, I find it. But if I search for 0.137 kg, the program finds nothing at all.