text: Joshua: NEED HELP!!! 
  Lila: Hey man, whats up?
  Joshua: I just can't firgure out how to do exercise 5... :(
  Joshua: I hate calculus
  Lila: one sec - let me get my book
  Lila: Oh yeah, that one's kinda tricky - this is what i got: H(x) =e(7x-4) + ln(x) + c 
  Joshua: Thanks :) Fir real though these math tests are gonna kill me XD
  Lila: Be careful though - the final exercise is a trick question
  Lila: You need to use the answer from the previous question to work it out.
  Joshua: k thanks :) you ready for the test?
  Lila: Yeah, you?
  Joshua: I'm just hoping that the gods of calculus will smile upon me and i get by with a C or something
  Lila: It'll be fine :) I can meet with you in the library tomorrow after school if you want
  Joshua: YES!! I need all the help I can get - Mr Wicks is threatening to pull me out of practise 
  Lila: :(
  Lila: I might be a little late - band practise tends to go overtime lately
  Joshua: It's okay, I'll get started on revision :)
target: Joshua struggles with calculus so tomorrow he will meet with Lila in the library to study together.