### Instruction:

Extract the cause and effect entities from the following sentence:
The parent metal shear sections and interface tubes are defined by the term “parent metal” when they are machined from a single, certified bar of high-purity metal alloy with no welds

### Assistant:

EFFECT_1: The parent metal shear sections
EFFECT_2: interface tubes are defined by the term “parent metal”
KEYWORD: when
CAUSE_1: they are machined from a single
CAUSE_2: certified bar of high-purity metal alloy
CAUSE_3: with no welds
NEGATION: no
AND: and
VARIABLE: they
CONDITION: welds

