### Instruction:

Extract the cause and effect entities from the following sentence:
Once a requirement was identified then it was first checked against the outcomes of the first user consultation meeting (UCM#1) for agreement, differences or contradictions

### Assistant:

KEYWORD: then
VARIABLE: it
CONDITION: contradictions
CAUSE_1: a requirement was identified
OR: or
EFFECT_1: it was first checked against the outcomes of the first user consultation meeting (UCM#1) for agreement
EFFECT_2: differences
EFFECT_3: contradictions

