id: 90 yr ( 1, (0, 0, 0, 1)) (( 0.0, 0.0 ), ( 1.4, 3.3 ))
 +2                      +0 
                       |
  2020                    |
                       |
   +    +    +    +    +
                       |
                       |
                       |
                       |
 0--+----+----+----+-----4