Subject history textbook
Predicate has_property
Object secondary source
Modality
Modality Occurrences
Polarity POSITIVE
Plausibility 0.6140
Neighborhood Sigma 0.7344
Local Sigma 1.0000
Example Sentences
Sentence Occurrences Source
a history textbook is a secondary source 24 Google Autocomplete
history textbooks are secondary sources 1 Google Autocomplete