anchor.diff:  column values are determined automatically when a labor contract is
   created.  As mentioned above, the customer and supplier will both
   automatially be set to the land-owning 'Fairian'. The term will be
  -automatically set to a value of $1$ (which is discussed further below). 
  +automatically set to a value of one (which is discussed further below). 
   
   Only the work_place and skill_name need be specified for the self-owned
   land cultivation scenario.
  
positive.code: 
  and then confirms that her trade executed at the best price by 
  as seen in the the cash_journal, which shows the +fc45+ payment
  by Alice to David at click +22+ ratifying contract $'fe5dbbcea5ce7e'$:
  
  --------------------------------------------
  fairwinds=# select click, fairian_name, account, debit, credit, description 
  
negative.code: The first important implication is that Alice develops proficiency at a
  skill, namely, by engaging in cultivation, she gets better at it.  A
  record of her developing skill proficiency is recorded in the skill_journal 
  view (note that the game has advanced by four clicks since the contract
  issue_date):
  
  --------------------------------------------
  