Perhaps you should try some spelling variations:
communication observations » communication operations, communication abstractions, communication preservation
communities observations » communities organizations, community conservation, communities perceptions
empirical dimensions » empirical dimension, geometrical dimensions, political dimensions
dimensions 1.2 » dimensions 10.2, dimensions 12, dimensions 1.8
1.2 linear » 13.2 linear, 12 linear, 6.2 linear

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