는 훌륭한

is excellent

→ 는
phrase Uncommon #14,474
is excellent 는 marks the topic, and 훌륭한 means “excellent” before a noun. The full phrase usually continues with a noun, as in “as for [someone], an excellent …”
KO: 그는 훌륭한 선생님이에요.
EN: He is an excellent teacher.

켄드릭 중위, 산티아고는 훌륭한 해병 이었나요?

Lieutenant Kendrick, was Santiago a good Marine?

— 어 퓨 굿 맨 (1992)

톰과 메리는 훌륭한 이웃 이었다.

Tom and Mary were great neighbors.