Detailed Instructions: Given a text, write a compressed version of it in a single sentence.
See one example below:
Problem: Except for this small vocal minority, we have just not gotten a lot of groundswell against this from members, " says APA president Philip G. Zimbardo of Stanford University.
Solution: "Except for this small vocal minority, we have not gotten a lot of groundswell against this," says APA president Zimbardo.
Explanation: Both texts convey the same meaning that they have not gotten much groundswell against this except for small minority.

Problem: An expression and concept that came into usage in Mexico around 1900, but was not completely culturally defined until after the Mexican Revolution in the late 1920s. The concept had to do with Mexican nationalism and a sense of self-identity with a Mexican consciousness.
Solution:
A concept that came into usage in Mexico around 1900, but was not culturally defined until after the Revolution. The concept had to do with Mexican nationalism and a sense of self-identified.