Subject	public good
Predicate	has_manner
Object	hard
Modality	Modality Occurrences
Polarity	POSITIVE
Plausibility	0.6872
Neighborhood Sigma	0.7029
Local Sigma	0.6872
Example Sentences	Sentence Occurrences Source public goods are hard to create 2 Google Autocomplete public goods are hard to create or protect 2 Google Autocomplete