Data: Athens, mayor, Giorgos Kaminis
Sentence about the following data:
A: The mayor of Athens is Giorgos Kaminis.

Data: United States, leader, Barack Obama; A Fortress of Grey Ice, language, English language; English language, spokenIn, Great Britain; A Fortress of Grey Ice, country, United States
Sentence about the following data:
A: A Fortress of Grey Ice is from the United States, written in English (a language spoken in Great Britain). The president of the United States is Barack Obama.

Data: AIDAstella, maidenVoyage, 2013-03-17; AIDAstella, shipBeam, 32.2; AIDAstella, length, 253260.0 (millimetres)
Sentence about the following data:
A:
AIDAstella is 253260.0 mm long with a 32.2 meter beam. Its maiden voyage was 3/17/2013.