### Instruction:

Extract the cause and effect entities from the following sentence:
The next lower level GTIN must already exist, therefore the order of trade items to be entered should be from lowest to highest e.g. consumer, then intermediate, then traded, etc

### Assistant:

VARIABLE: the order of trade items to be entered
CONDITION: should be from lowest to highest
CAUSE_1: The next lower level GTIN must already exist
KEYWORD: therefore
EFFECT_1: the order of trade items to be entered should be from lowest to highest
NOT_RELEVANT: e.g. consumer, then intermediate, then traded, etc.

