answer: Robbie took part in India Holly, gets wet and is covered with powder. People celebrate Holly by throwing colored powder and water that made from traditional Indian medicines and the yellow flowers called Palash. The date of Holly changes every year. Robbie can take #Person1# to Holly next year.
documents: #Person1#: Hey, Robbie. You're completely wet and covered with powder. So many colors! I mean, you look like a rainbow. What happened?
  #Person2#: I've just come back from visiting my family. You know, we're from India and today is our Spring Festival Day. We call it Holly.
  #Person1#: That's all very interesting. But I still don't understand why you look like that?
  #Person2#: Well, we celebrate Holly by throwing colored powder and colored water at each other. And we light big fires, too, to show thanks to the gods.
  #Person1#: Interesting. But aren't you afraid that you'll catch a cold and get ill? I mean, you're completely wet.
  #Person2#: Actually, the things we throw at each other helped to keep us healthy.
  #Person1#: What do you mean?
  #Person2#: Well, the colored powders we throw are made from traditional Indian medicines.
  #Person1#: And the coloured water, too?
  #Person2#: The coloured water comes from the yellow flowers called Palash, and they're good for you, too.
  #Person1#: Amazing. It sounds like a lot of fun.
  #Person2#: It really is. Next year, if you're interested, I'll bring you along.
  #Person1#: That would be great. I'll make sure I keep February second free.
  #Person2#: Actually, Holly isn't like Christmas. The date changes from year to year. It's always celebrated at the end of the winter season, on the last full moon day of the month.
  #Person1#: OK, just let me know when it is. Anyway, you'd better go inside and get changed.