There are several criteria for a go

There are several criteria for a good caption. A good caption clearly identifies the subject of the picture without detailing the obvious. it is succinct, establishes the picture's relevance to the article, provides context for the picture, and draws the reader into the message.
So related to the structure of a caption , it can be written in the form a word(s) , a phrase(s) or a sentence(s)

Hasil (Bahasa Indonesia) 1:

Ada beberapa kriteria untuk keterangan baik. Keterangan baik jelas mengidentifikasi subjek gambar tanpa rincian jelas. itu ringkas, menetapkan relevansi gambar ke artikel, menyediakan konteks untuk gambar dan menarik pembaca ke dalam pesan.Jadi berhubungan dengan struktur keterangan, dapat ditulis dalam bentuk tema, phrase(s) atau sentence(s)