### Instruction:

Extract the cause and effect entities from the following sentence:
Because system capacity and spectrum saturation in the VHF aeronautical communications band appears to be a more pressing issue in Europe, the need for an L-band system is more prevalent in that region

### Assistant:

KEYWORD: Because
VARIABLE: the need for an L-band system
AND: and
CONDITION: is more prevalent in that region
EFFECT_1: the need for an L-band system is more prevalent in that region
CAUSE_1: system capacity
CAUSE_2: spectrum saturation in the VHF aeronautical communications band appears to be a more pressing issue in Europe

