### Instruction:

Extract the cause and effect entities from the following sentence:
If the system receives an invalid input the user should be informed and prompted to insert an accepted input

### Assistant:

CAUSE_1: the system receives an invalid input
EFFECT_1: the user should be informed
EFFECT_2: prompted to insert an accepted input
AND: and
KEYWORD: If
VARIABLE: the user
CONDITION: prompted to insert an accepted input

