[ACM Press the 2016 ACM International Symposium - Amsterdam, Netherlands (2016.11.02-2016.11.04)] Proceedings of the 2016 ACM International Symposium on New Ideas, New Paradigms, and Reflections on Programming and Software - Onward! 2016 - Lightweight programming experiments without programmers and programs: an example study on the effect of similarity and number of object identifiers on the readability of source code using natural texts