text: In the eighteenth century, this lake was allegedly where a wooden tablet with an image of the Virgin Marydrifted up next to a washerwoman named Maria Cardenas.
full_question: In the eighteenth century, this lake was allegedly where a wooden tablet with an image of the Virgin Marydrifted up next to a washerwoman named Maria Cardenas. Nancy Wexler has studied the oddly highprevalence of Huntington's disease among the native population along this lake's shore. An Esso tanker oncecollided into the Rafael Urdaneta Bridge crossing this lake's outlet. In 2004, nearly twenty percent of this lakequickly became covered in duckweed. A significant amount of thunderless lightning occurs where theCatatumbo River empties into this lake. This lake's palafitos, or stilt houses, led Amerigo Vespucci to name itssurrounding region "Little Venice." For 10 points, name this lake in Venezuela that is the largest in SouthAmerica. 
first_sentence: In the eighteenth century, this lake was allegedly where a wooden tablet with an image of the Virgin Marydrifted up next to a washerwoman named Maria Cardenas.
raw_answer:  Lake Maracaibo [or Lago de Maracaibo] 