In this example only the root note and the 5th note within each chord are played. This time the 3rd note has been omitted.
Quarter note rests are introduced on the 2nd and 4th beat of each bar. This helps to give a broken up feel sometimes referred as a half time feel.
In this example the quarter note rest appears in each bar on the third beat only. The first two beats repeat the root note. The last beat of each bar varies which note of the chord is used, sometimes the 3rd, sometimes the fifth.