user: Which of the star signs are earth signs?

assistant: Virgo, Taurus and Capricorn are the three astrological earth signs in the Zodiac.

user: Where is the Kilwa Tanga

assistant: Kilwa is an administrative ward in Kilindi District of Tanga Region in Tanzania. The ward covers an area of 153 km2 (59 sq mi), and has an average elevation of 858 m (2,815 ft).

According to the 2012 census, the ward has a total population of 6,835.

user: Which episode of The X-Files did Dana Scully get diagnosed with cancer?

assistant: Memento Mori, episode 14 of season 4.