The phrase "a topic can be" is correct and usable in written English.
It can be used when discussing the nature, characteristics, or possibilities related to a specific topic.
Example: "A topic can be broad or narrow, depending on the scope of the discussion."
Alternatives: "a subject may be" or "a theme can be".
A.P. teachers have long complained that lingering for an extra 10 or 15 minutes on a topic can be a zero-sum game, squeezing out something else that needs to be covered for the exam.
A topic can be considered as a concept represented through its top words.
A topic can be represented by the words contained in it.
The dynamic characteristic of a topic can be reflected by the substantial increase of citation times of literature.
Suppose that a user has contacts,, then the inter rank of the user, relative to a topic, can be calculated using (2) which aggregates all the contacts' inner ranks: (2).
In addition, recognising the absence of a topic can be demanding if an agenda or curriculum is not specifically constructed beforehand.
There should be an expectation that any topic can be raised, even the ones that parents rather not talk about.
The text of a discussion topic can be an individual word, a list of words, a phrase, a sentence/question, or a paragraph.
The topic distribution over a set of documents (web pages) and the affinity of a document toward a specific topic can be revealed using topic modeling.
For current and, I'm guessing former OHMA students, deciding on a research topic can be a daunting task, one made even more complex by the many interests with which we enter the program.
The identified perspectives and tensions regarding a specific topic can be connected to a manageable number of worldviews: a systematically assembled set of coherent value structures shared by a wide range of people in society.
