21.  The ox cart is still the primary means of transportation, and word of mouth the main grapevine.

22.  The printed word is still the primary means of spreading serious ideas.

23.  The primary means under development is a pipeline from Baku through Tbilisi to the Turkish port of Ceyhan.

24.  Therefore, we rely on grass-roots outreach and the news media as our primary means of reaching voters with our message.

25.  This poses a problem for reform efforts because public stock offerings posted on the market there are the primary means to raise money for state-owned companies.

26.  This pattern recognition technique is the primary means of determining hurricane and typhoon strength in most areas of the world.

27.  When Dorina was young, abortion was the primary means to prevent unwanted births.

28.  While depriving the pianist of his primary means of artistic expression for many years, it also largely deprived Julian of a father.

29.  Yet sight remains the primary means by which most humans construct the world around them.

30.  A bill to make injection the primary means of execution is pending in the Alabama Senate.