### Instruction:

Extract the cause and effect entities from the following sentence:
Other metals may require heat treatment after welding, as judged necessary by the responsible NASA materials specialist (checklist item 15D)

### Assistant:

EFFECT_1: Other metals may require heat treatment
KEYWORD: as
CAUSE_1: welding
CAUSE_2: judged necessary by the responsible NASA materials specialist
NOT_RELEVANT: (checklist item 15D)
VARIABLE: the responsible NASA materials specialist
CONDITION: judged necessary by

