title: What is difference between Parse Tree, Annotated Parse Tree and Activation Tree ?(compiler)
body: <p>I know what is a Parse Tree and what is an Abstract Tree but I after reading some about Annotated Parse Tree(as we draw detailed tree which is same as Parse Tree), I feel that they are same as Parse Tree.</p>
  
  <p>Can anyone please explain differences among these three in detail ?</p>
  
  <p>Thanks.</p>