21.   Guide Clay Miller gazes across the landscape from an open-air car while providing his running commentary on the Verde Canyon Railroad.

22.   He keeps up a running commentary as he goes.

23.   He keeps up a running commentary, an extremely important string of syllables discernible to no one but himself.

24.   He used the radio for a running commentary on local geology, history, flora and fauna.

25.   His films constitute a running commentary on Taiwanese identity, while drawing deeply on classical Chinese art.

26.   Huddled in our swivel seats, we used binoculars to scan the water and the shore as Taylor kept up a running commentary on the wildlife we chanced upon.

27.   Huffington and comedian Al Franken and other irreverent observers provide running commentary on live feeds from the real conventions.

28.   In the meantime there are enough tart observations to keep it vivid as a running commentary, which is perhaps its true purpose after all.

29.   Just imagine her running commentary!

30.   Like any specialized jargon, the shoptalk used by residents not only conveys facts but provides a running commentary on the absurdities of hospital life.