Examples:
The internal walls were underpinned with micropiles caped by a grillage of prestressed concrete.
'Mothers know best' is the belief that underpins our playgroup.
New Zealand software underpins the race for new oil discoveries.
The permanence of the law of change underpinned the spread of this ugly scenario.
Mappings:
VerbNet: NP
FrameNet: NP
PropBank: underpin.01
WordNet 3.0 Sense Numbers: 1, 2