### Instruction:

Extract the cause and effect entities from the following sentence:
Steel parts shall be heat-treated to meet the requirements of SAE AMS-H-6875 or SAE AMS 2759

### Assistant:

VARIABLE: SAE AMS 2759
CONDITION: to meet
OR: or
EFFECT_1: to meet the requirements of SAE AMS-H-6875
EFFECT_2: SAE AMS 2759
CAUSE_1: Steel parts shall be heat-treated


### END
