Flashing lights transmit messages between ships and to motorists along city streets

There should be more communication between the persons concerned

Those two boys are cousins

Japan and South Korea are neighbors

Japan's problem has been that she has continued to view international relations as an extension of her hierarchical interpersonal relations at home

The teenage friends stayed up talking all night

Two male school pupils sharing an umbrella? That's quite a queer situation

Old school friends often try to keep in touch with one another

"It's the age of BL!" "Bee el?" "Yup, Boys' Love. Books and such dealing with romance between boys.

We should be kind to each other