Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Sound logic

Someone wiser than us has decided that one should learn how to calculate manually before giving them a calculator. Supposedly this way they have an idea of what goes on in that little black box. Personally I am not interested n how it gets there.Following this logic, one should know the "Essentials of Flowcharting" before buying ABC Flowchart or its equivalent. Measure twice and cut once. This has lots of practical examples, unlike those toy charts you make at school.Understanding Fortran