### Instruction:

Extract the cause and effect entities from the following sentence:
This first technique uses the time of transmission, the known signal propagation speed and the time of arrival of such signal in order to compute the distance between two nodes in the WSN

### Assistant:

KEYWORD: in order
CONDITION: the known signal propagation speed
VARIABLE: This first technique
CAUSE_1: to compute the distance between two nodes in the WSN
AND: and
EFFECT_1: This first technique uses the time of transmission
EFFECT_2: the known signal propagation speed
EFFECT_3: the time of arrival of such signal

