• use equality to identify number and deicide true/false, use dispatch to single out the selected data set
  • deconstruct: x, y, z
  • x= the first number
  • second number is the selected x value
  • dispatch to single out the items that are associated w selected x values
• use sort list to rearrange a list base on one set of data (Keys), output different forms of data (Values A, B, C…)
  • keys, similar to dispatch_ first number
  • values, similar to second number