Task: put a calculator and index filer on the middle of the desk

Objects in the environment:
  id   object_type     position_x     position_y     position_z     rotation_x     rotation_y     rotation_z     parent_receptacle
----  --------------  -------------  -------------  -------------  -------------  -------------  -------------  --------------------
   0  Agent           0.75           0.901          0.25           0              180            0
   1  CellPhone       -1.171         0.631          -0.198         0              0              0              18
   2  Pen             -0.561         0.668          0.427          0              180            0              30
   3  CreditCard      0.293          0.692          -2.266         0              90             0              27
   4  AlarmClock      -0.413         0.664          0.470          0              180            0              30
   5  Box             -0.015         0.239          -2.091         0              0              0
   6  Book            -1.171         0.629          -0.748         0              0              0              18
   7  BaseballBat     1.798          0.639          0.425          0              0              342.316
   8  Pen             0.293          0.698          -2.336         0              90             0              27
   9  Pencil          0.135          0.696          -2.084         0              99.090         0              27
  10  KeyChain        -0.634         0.663          0.470          0              90             0              30
  11  Pillow          -1.696         0.703          -0.748         0              0              0              18
  12  CreditCard      -0.577         0.693          -2.400         0              90             0              27
  13  CellPhone       -0.708         0.664          0.513          0              180            0              30
  14  Laptop          -1.696         0.628          0.076          0              0              0              18
  15  CD              -0.451         0.369          0.480          0              0              0              29
  16  Bowl            1.222          0.686          -2.128         0              0              0              27
  17  AlarmClock      1.492          0.475          -0.911         0              270            0              26
  18  Bed             -1.696         0.004          -0.446         0              0              0
  19  Chair           0.956          -0.000         -1.747         0              110.225        0
  20  DeskLamp        -0.440         0.688          -2.276         0              0              0
  21  LightSwitch     0.625          1.338          0.734          0              180            0
  22  GarbageCan      1.660          -0.019         -0.389         0              345.008        0
  23  Mirror          1.300          1.422          0.765          0              0              0
  24  HousePlant      -0.867         0.000          -2.286         0              0              0
  25  Window          0.819          1.496          -2.553         90             180            0
  26  Shelf           1.616          0.561          -0.802         0              0              0
  27  Desk            0.617          -0.000         -1.511         0              0              0
  28  Blinds          0.796          2.217          -2.476         0              0              0
  29  Drawer          -0.558         0.456          0.462          0              180            0
  30  SideTable       -0.557         -0.000         0.529          0              180            0
  31  Drawer          -0.558         0.164          0.462          0              180            0
  32  Desktop         1.455          0.692          -1.886         358.180        309.674        0
  33  NorthWall
  34  EastWall
  35  SouthWall
  36  WestWall

Plan:
STEP 1: go to the left end of the desk | STEP 2: pick up the index filer | STEP 3: take the filer to the middle of the desk | STEP 4: set the object in front of and to the right of the monitor on the desk | STEP 5: go to the nightstand | STEP 6: pick up the calculator | STEP 7: take the calulator to the left end of the desk | STEP 8: put the calculator on the desk | END