Section 905. Complaint

The  complaint  shall  describe the property with
  reasonable certainty, specify the rights, shares and  interests  therein
  of  each  of the parties, as far as the same are known to the plaintiff,
  and contain any other allegation required by statute. If a party, or the
  share, right or interest of a party, be unknown to the plaintiff; or  if
  a  share,  right  or  interest  be  uncertain  or  contingent; or if the
  ownership of the inheritance depend upon an executory devise;  or  if  a
  remainder  be  contingent, so that the party cannot be named; such facts
  shall be stated in the complaint. The complaint shall state whether  the
  parties own any other lands in common.