Input: 

A Business Dinner<br>Elton was meeting a client in a nice restaurant. His company had given him money to entertain the client. Elton paid for an expensive meal for himself and the client. He told stories and joked with the client. The client continued doing more and more business with the company.

Sentence: Elton doesn't contain the letter z

Output: Yes


Input: 

Tilman Frasch is a historian working at Manchester Metropolitan University. He is a leading expert in Burmese historical sources of the Pagan period. Frasch received his PhD in Heidelberg in 1994 with a work about the Pagan kingdom, titled "Pagan: Stadt und Staat.

Sentence: Dr. Tilman Frasch has always worked Manchester Metropolitan University.

Output: It's impossible to say


Input: 

Blue Mountain Lumber said today it may have to relocate a $30 million project offshore in the wake of an Environment Court decision that blocked it from a planned development site on the Coromandel.

Sentence: Blue Mountain Lumber hit an obstacle with their project

Output: Yes


Input: 

The Bank of Italy, the ultimate arbiter of Italian banking mergers, has been engulfed by scandal since police wire taps revealed Fazio and his wife advised a local banker in a bid for bank Antonveneta against Dutch bank ABN AMRO.

Sentence: The Bank of Italy is corrupt.

Output:
It's impossible to say