The first Penn Treebank sentence
Pierre Vinken , 61 years old , will join the board as a nonexecutive director Nov. 29 .
Another Penn Treebank sentence
The events of April through June damaged the respect and confidence which most Americans previously had for the leaders of China .
Dr. Jekyll saw and Mr. Hyde ate a lemon .
A question/answer pair
How many lemons did Dr Jekyll eat ?
Mr. Jekyll ate four lemons and five apples .
An example illustrating the semantic operators
A man does not talk or every man walks .