### Instruction:

Extract the cause and effect entities from the following sentence:
Materials that are not expected to meet the design life requirements but must be used for functional reasons shall be identified as limited-life items in accordance with 4.2.2.2

### Assistant:

KEYWORD: that
NEGATION: are not
CONDITION: shall be identified as limited-life items in accordance with 4.2.2.2
AND: but
VARIABLE: Materials
CAUSE_1: are not expected to meet the design life requirements
CAUSE_2: must be used for functional reasons
EFFECT_1: shall be identified as limited-life items in accordance with 4.2.2.2

