Problem: Is "Prehistoric humans hunted for deer on the river banks." true if "Archaeologists have concluded that humans lived in Laputa 20,000 years ago. They hunted for deer on the river banks."?
Answer: yes

Problem: Is "Beside the food there were crocks, baskets, and a five-quart pail of milk." true if "The table was piled high with food, and on the floor beside it there were crocks, baskets, and a five-quart pail of milk."?
Answer: no

Problem: Is "Tom reached the bottom of the stairs." true if "Tom threw his schoolbag down to Ray after he reached the bottom of the stairs."?
Answer: no

Problem: Is "Sam was eager to speak it fluently." true if "Sam took French classes from Adam, because he was eager to speak it fluently."?
Answer:
yes