### Instruction:

Extract the cause and effect entities from the following sentence:
The absolute navigation state determination system design requires provision for the spacecraft to estimate the vehicle’s position and velocity in inertial space

### Assistant:

EFFECT_1: to estimate the vehicle’s position
AND: and
EFFECT_2: velocity in inertial space
CAUSE_1: The absolute navigation state determination system design requires provision for the spacecraft
VARIABLE: velocity in inertial space
CONDITION: to estimate


### END
