### Instruction:

Extract the cause and effect entities from the following sentence:
Some of the aircraft operating in this normal (not High Performance (HP)) airspace are equipped with full 4-D trajectory-capable integrated data communications, while other aircraft have less capable data communications or lack ATC data capabilities and thus rely exclusively on voice

### Assistant:

VARIABLE: other aircraft
CONDITION: rely exclusively on voice
OR: or
KEYWORD: while
EFFECT_1: rely exclusively on voice
CAUSE_1: other aircraft have less capable data communications
CAUSE_2: lack ATC data capabilities
NOT_RELEVANT: Some of the aircraft operating in this normal (not High Performance (HP)) airspace are equipped with full 4-D trajectory-capable integrated data communications

