Which of the following should be considered when constructing an opinion/review search engine? A) If the application is integrated into a general-purpose search engine, then one would need to determine whether the user is in fact looking for subjective material.

B) Determining which documents are topically relevant to an opinion-oriented query.

C) Simultaneously or subsequently determining which documents or portions of documents contain review-like or opinionated material.

D) Identifying the overall sentiment expressed by review-like or opinionated documents and/or the specific opinions regarding particular features or aspects of the items or topics in question, as necessary.

E) Present the sentiment information it has garnered in some reasonable summary fashion.