### Instruction:

Extract the cause and effect entities from the following sentence:
We have a plan; now it is time to begin the really difficult work of execution, which is much more difficult than planning because it requires commitment to action

### Assistant:

KEYWORD: because
CONDITION: requires commitment to action
VARIABLE: work of execution
CAUSE_1: it requires commitment to action
EFFECT_1: work of execution
NOT_RELEVANT: We have a plan; now it is time to begin the really difficult

