### Instruction:

Extract the cause and effect entities from the following sentence:
These modules are easy to use as they behave like simple modems (communication uses serial and configuration is done through Hayes AT commands)

### Assistant:

KEYWORD: as
VARIABLE: These modules
CONDITION: are easy to use
NOT_RELEVANT: (communication uses serial and configuration is done through Hayes AT commands)
EFFECT_1: These modules are easy to use
CAUSE_1: they behave like simple modems

