+---C03C02---+
    |     +C03C02+C02C07+C07C03+C03C06+C06C05+
    |     |      |      |      |      |      |
LEFT-WALL a     mom    is      a    human    .



    +---C03C02---+
    |     +C03C02+C02C07+C07C03+C03C06+C06C05+
    |     |      |      |      |      |      |
LEFT-WALL a     dad    is      a    human    .



    +---C03C02---+
    |     +C03C02+C02C07+C07C03+C03C06+C06C05+
    |     |      |      |      |      |      |
LEFT-WALL a     mom    is      a   parent    .



    +---C03C02---+
    |     +C03C02+C02C07+C07C03+C03C06+C06C05+
    |     |      |      |      |      |      |
LEFT-WALL a     dad    is      a   parent    .



    +---C03C01---+
    |     +C03C01+C01C07+C07C03+C03C06+C06C05+
    |     |      |      |      |      |      |
LEFT-WALL a     son    is      a    child    .



    +---C03C01---+
    |     +C03C01+C01C07+C07C03+C03C06+C06C05+
    |     |      |      |      |      |      |
LEFT-WALL a  daughter  is      a    child    .



    +---C03C01---+
    |     +C03C01+C01C07+C07C03+C03C06+C06C05+
    |     |      |      |      |      |      |
LEFT-WALL a     son    is      a    human    .



    +---C03C01---+
    |     +C03C01+C01C07+C07C03+C03C06+C06C05+
    |     |      |      |      |      |      |
LEFT-WALL a  daughter  is      a    human    .



    +---C03C02---+
    |     +C03C02+C02C07+C07C04+C04C05+
    |     |      |      |      |      |
LEFT-WALL a     mom   likes  cake     .



    +---C03C01---+
    |     +C03C01+C01C07+C07C04+C04C05+
    |     |      |      |      |      |
LEFT-WALL a  daughter likes  cake     .



    +---C03C01---+
    |     +C03C01+C01C07+C07C04+C04C05+
    |     |      |      |      |      |
LEFT-WALL a     son   likes sausage   .



    +---C03C02---+
    |     +C03C02+C02C07+C07C04+C04C05+
    |     |      |      |      |      |
LEFT-WALL a     dad   likes sausage   .



    +-C03C04+C04C07+C07C03+C03C06+C06C05+
    |       |      |      |      |      |
LEFT-WALL cake    is      a    food     .



    +-C03C04-+C04C07+C07C03+C03C06+C06C05+
    |        |      |      |      |      |
LEFT-WALL sausage  is      a    food     .



    +C03C02+C02C07+C07C03+C03C06+C06C05+C05C05+
    |      |      |      |      |      |      |
LEFT-WALL mom    is      a    human   now     .



    +C03C02+C02C07+C07C03+C03C06+C06C05+C05C05+
    |      |      |      |      |      |      |
LEFT-WALL dad    is      a    human   now     .



    +C03C02+C02C07+C07C03+C03C06+C06C05+C05C05+
    |      |      |      |      |      |      |
LEFT-WALL mom    is      a   parent   now     .



    +C03C02+C02C07+C07C03+C03C06+C06C05+C05C05+
    |      |      |      |      |      |      |
LEFT-WALL dad    is      a   parent   now     .



    +C03C01+C01C07+C07C03+C03C06+C06C05+C05C05+
    |      |      |      |      |      |      |
LEFT-WALL son    is      a    child   now     .



    +--C03C01-+C01C07+C07C03+C03C06+C06C05+C05C05+
    |         |      |      |      |      |      |
LEFT-WALL daughter  is      a    child   now     .



    +C03C01+C01C07+C07C03+C03C06+C06C05+C05C05+
    |      |      |      |      |      |      |
LEFT-WALL son    is      a    human   now     .



    +--C03C01-+C01C07+C07C03+C03C06+C06C05+C05C05+
    |         |      |      |      |      |      |
LEFT-WALL daughter  is      a    human   now     .



    +C03C02+C02C07+C07C04+C04C05+C05C05+
    |      |      |      |      |      |
LEFT-WALL mom   likes  cake    now     .



    +--C03C01-+C01C07+C07C04+C04C05+C05C05+
    |         |      |      |      |      |
LEFT-WALL daughter likes  cake    now     .



    +C03C01+C01C07+C07C04+C04C05+C05C05+
    |      |      |      |      |      |
LEFT-WALL son   likes sausage  now     .



    +C03C02+C02C07+C07C04+C04C05+C05C05+
    |      |      |      |      |      |
LEFT-WALL dad   likes sausage  now     .



    +-C03C04+C04C07+C07C03+C03C06+C06C05+C05C05+
    |       |      |      |      |      |      |
LEFT-WALL cake    is      a    food    now     .



    +-C03C04-+C04C07+C07C03+C03C06+C06C05+C05C05+
    |        |      |      |      |      |      |
LEFT-WALL sausage  is      a    food    now     .



                  +--------C07C03-------+
    +C03C02+C02C07+C07C03+C03C01+       +C03C05+
    |      |      |      |      |       |      |
LEFT-WALL mom    was     a  daughter before    .



                  +-------C07C03------+
    +C03C02+C02C07+C07C03+C03C01+     +C03C05+
    |      |      |      |      |     |      |
LEFT-WALL dad    was     a     son before    .



                  +----------C07C03---------+
                  |      +---C03C06--+      |
    +C03C02+C02C07+C07C03+C03C03+    +C06C03+C03C05+
    |      |      |      |      |    |      |      |
LEFT-WALL mom    was    not     a parent before    .



                  +----------C07C03---------+
                  |      +---C03C06--+      |
    +C03C02+C02C07+C07C03+C03C03+    +C06C03+C03C05+
    |      |      |      |      |    |      |      |
LEFT-WALL dad    was    not     a parent before    .



                  +---C07C03---+
    +C03C02+C02C07+C07C04+     +C03C05+
    |      |      |      |     |      |
LEFT-WALL mom   liked  cake before    .



                  +----C07C03----+
    +C03C02+C02C07+C07C04+       +C03C05+
    |      |      |      |       |      |
LEFT-WALL dad   liked sausage before    .



                   +-----C07C03-----+
    +-C03C04+C04C07+  +C03C06+C06C03+C03C05+
    |       |      |  |      |      |      |
LEFT-WALL cake    was a    food  before    .



                    +-----C07C03-----+
    +-C03C04-+C04C07+  +C03C06+C06C03+C03C05+
    |        |      |  |      |      |      |
LEFT-WALL sausage  was a    food  before    .