In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.

Q: Yegor Kuzmich Ligachyov ( Ligachev ; ; born 29 November 1920 ) is a Soviet politician who was a high-ranking official in the Communist Party of the Soviet Union ( CPSU ) .

A: Yegor Kuzmich Ligachev ( , born 29 November 1920 ) is a Soviet politician .
****
Q: Spontaneous symmetry breaking is a spontaneous process of symmetry breaking , by which a physical system in a symmetric state ends up in an asymmetric state .

A: Spontaneous symmetry breaking is a way symmetry breaks in a physical system .
****
Q: Over time , the degree of integration has increased and tri-service headquarters , logistics and training institutions have supplanted many single-service establishments .

A:
Over time , the three services have combined headquarters , logistics and training camps .
****
