### Instruction:

Extract the cause and effect entities from the following sentence:
In cases where more than one LAC zone are in use the LAC zones should be numbered from south to north starting from 1; see Figure 6 and Figure 7

### Assistant:

KEYWORD: In cases where
VARIABLE: the LAC zones
CONDITION: should be numbered from south to north starting from 1
CAUSE_1: more than one LAC zone are in use
EFFECT_1: the LAC zones should be numbered from south to north starting from 1
NOT_RELEVANT: see Figure 6 and Figure 7

