Given a text, write a compressed version of it in a single sentence.

Case Study A method for learning about a complex instance, based on a comprehensive understanding of that instance, obtained by extensive description and analysis of the instance, taken as a whole and in its context.
Case Study A's learning method about a complex instance, based on an understanding of such, obtained by description and analysis, taken as a whole in its context.

The apparently mysterious second law of thermodynamics states that the entropy of a system is either constant or increases. The modern understanding of entropy can be stated roughly with the help of the concept of a 6N-dimensional phase space.
The 2nd law of thermodynamics states that entropy of a system is constant or it increases. Modern understanding can be stated with the help of a 6N-dimensional phase space.

The legislative history establishes that legal representation for H-2A workers was a crucial part of the legislative compromise that established the H-2A program. The creation of the H-2A program was controversial, given the history of prior temporary agricultural programs such as the Bracero program.
The legislative history shows that legal representation for H-2A workers was a crucial compromise that established the H-2A program. Its creation was controversial, given the history of prior temporary agricultural programs.