article_snippet: Moritz the pig in Berlin, Germany has solved a complex puzzle.
article_snippet: the pig in Berlin did the pig in Berlin without any help from a human.
article_snippet: the pig in Berlin does this using the pig in Berlin mouth, without any help.
highlights_snippet: Moritz the pig in Berlin, Germany has solved a complex puzzle .
  
highlights_snippet: the pig in Berlin was able to carry out the task without any help from a human .
  