Improve error message when entity sequence is inconsistent
Improve error message when entity sequence is inconsistent

explosion/spaCy,spacy-io/spaCy,explosion/spaCy,explosion/spaCy,explosion/spaCy,honnibal/spaCy,spacy-io/spaCy,spacy-io/spaCy,honnibal/spaCy,honnibal/spaCy,spacy-io/spaCy,spacy-io/spaCy,explosion/spaCy,spacy-io/spaCy,honnibal/spaCy,explosion/spaCy