the dogs bark .
the dog barks .
the dog bark .
the dogs barks .
dog bark .
dogs bark .
the dogs bark the cats .
John thought that the book was interesting .
John thought the book .
Mary put the book .
Mary put the book on the shelf .
did Mary put the book on the shelf ?
put Mary the book on the shelf ?
what did Mary put on the shelf ?
what did Mary put ?
what does John know ?
what does Mary think John knows ?
the farmer loaded the cart with sand .
the farmer loaded sand into the cart .
the farmer filled sand into the cart .
the farmer filled the cart with sand .
Mary saw herself .
Mary saw himself .
John saw himself .
John reached the summit on Tuesday .
Mary reached the summit for five minutes .
John walked on Tuesday .
Mary walked for five minutes .