root:
             creates   file:./
             creates   file:plan1.py
             creates   step:./plan1.py

file:./
               state = STATIC
          created by   root:
            supplies   file:copy1.txt
            supplies   file:copy_both1.txt
            supplies   file:plan1.py
            supplies   file:source1.txt
            supplies   file:source_both.txt
            supplies   step:./plan1.py
            supplies   step:cp source1.txt copy1.txt
            supplies   step:cp source_both.txt copy_both1.txt

file:plan1.py
               state = STATIC
          created by   root:
            consumes   file:./
            supplies   step:./plan1.py

step:./plan1.py
               state = SUCCEEDED
           explained = yes
          created by   root:
            consumes   file:./
            consumes   file:plan1.py
             creates   file:source1.txt
             creates   file:source_both.txt
             creates   step:cp source1.txt copy1.txt
             creates   step:cp source_both.txt copy_both1.txt

file:source_both.txt
               state = STATIC
          created by   step:./plan1.py
            consumes   file:./
            supplies   step:cp source_both.txt copy_both1.txt

step:cp source_both.txt copy_both1.txt
               state = SUCCEEDED
           explained = yes
          created by   step:./plan1.py
            consumes   file:./
            consumes   file:source_both.txt
             creates   file:copy_both1.txt
            supplies   file:copy_both1.txt

file:copy_both1.txt
               state = BUILT
          created by   step:cp source_both.txt copy_both1.txt
            consumes   file:./
            consumes   step:cp source_both.txt copy_both1.txt

step:cp source1.txt copy1.txt
               state = SUCCEEDED
           explained = yes
          created by   step:./plan1.py
            consumes   file:./
            consumes   file:source1.txt
             creates   file:copy1.txt
            supplies   file:copy1.txt

file:source1.txt
               state = STATIC
          created by   step:./plan1.py
            consumes   file:./
            supplies   step:cp source1.txt copy1.txt

file:copy1.txt
               state = BUILT
          created by   step:cp source1.txt copy1.txt
            consumes   file:./
            consumes   step:cp source1.txt copy1.txt
