Play word 専科 専科 せんか something that is specialized for a certain field or application (e.g. a sauce specially made for zaru soba)
Play word アマシイラ科 アマシイラ科 アマシイラか Luvaridae (family containing one extant species of perciform fish similar to a surgeonfish)
Play word イチョウ科 イチョウ科 イチョウか Ginkgoaceae (family of flowering plants whose only extant member is the ginkgo)
Play word イッカク科 イッカク科 イッカクか Monodontidae (cetacean family comprising the narwhal and white beluga whale)