Problem: Text: A check valve, clack valve, non-return valve, reflux valve, retention valve or one-way valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction.

Question: is check valve and non return valve same?
A: yes

Problem: Text: The ninth and final season began airing on September 23, 2013, and concluded on March 31, 2014, with a double-length finale episode, which received polarized reviews from critics and fans alike for its controversial twist ending, as many critics and fans believed it contradicted many of the previous episodes.

Question: will there be a season 10 of how i met your mother?
A: no

Problem: Text: The Good Fight is an American legal and political drama web television series produced for CBS's streaming service CBS All Access. It is CBS All Access's first original scripted series. The series--created by Robert King, Michelle King, and Phil Alden Robinson--is a sequel/spinoff to The Good Wife, which was created by the Kings. The first season contains 10 episodes, and premiered on February 19, 2017, with the first episode airing on CBS and the following nine episodes on CBS All Access. The series was initially planned to air in May 2017, but was moved up after production delays forced CBS to postpone the premiere of the new series Star Trek: Discovery.

Question: is the good fight related to the good wife?
A:
yes