title: Water Lilies (Monet series)
context: Water Lilies (or Nymphéas, French:[nɛ̃.fe.a]) is a series of approximately 250 oil paintings by French Impressionist Claude Monet (1840–1926). The paintings depict his flower garden at his home in Giverny, and were the main focus of his artistic production during the last thirty years of his life. Many of the works were painted while Monet suffered from cataracts.[1][2]
question: When did Monet paint his waterlilies series?
answers: 1840–1926