text: Greta: hi Martin :)
  Greta: can you tell me what do we have to do for our chem classes?
  Martin: hi
  Martin: we just have to prepare an experiment
  Greta: what kind of?
  Martin: just anything
  Greta: can i do the thing with spring in coke?
  Martin: like what?
  Greta: i will put one spring ino the coke
  Greta: another into the water
  Greta: and maybe third into oil
  Martin: wow
  Martin: great idea!
target: Greta's and Martin's assignment for chem class is preparing an experiment.