Question:
Which position did Anders Lysgaard hold in May, 1818?

Context:
 Anders Lysgaard holds the position of member of the Parliament of Norway from Jan, 1815 to Jan, 1817. 
 Anders Lysgaard holds the position of deputy member of the Parliament of Norway from Jan, 1818 to Jan, 1820. 
 Anders Lysgaard holds the position of member of the Norwegian Constitutional Assembly from Apr, 1814 to May, 1814.

Answer:
deputy member of the Parliament of Norway