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furnace → HasProperty → less efficient	0.51
water heater → HasProperty → less efficient	0.49
approach → HasProperty → less efficient	0.39
engine → HasProperty → less efficient	0.33
market → HasProperty → less efficient	0.33
white matter → HasProperty → less efficient	0.33
brain → HasProperty → less efficient	0.32
heat pump → HasProperty → less efficient	0.32
motor → HasProperty → less efficient	0.31
unit → HasProperty → less efficient	0.30
enzyme → HasProperty → less efficient	0.29
liver → HasProperty → less efficient	0.29
led → HasProperty → less efficient	0.27
engine (aspect of car) → HasProperty → less efficient	0.26
solar cell → HasProperty → less efficient	0.26
antenna → HasProperty → less efficient	0.24
algorithm → HasProperty → less efficient	0.22
cancer cell → HasProperty → less efficient	0.21
appliance → HasProperty → less efficient	0.16
fuel → HasProperty → less efficient	0.16
prop → HasProperty → less efficient	0.16
socialism → HasProperty → less efficient	0.16
transmission → HasProperty → less efficient	0.16
zika virus (subgroup of virus) → HasProperty → less efficient	0.16