後方 こうほう連絡 れんらく線 せん

kōhōrenraku sen

1. Not a rear communication line.

1. Was a rear communication line.

1. Rear communication line; Behind the lines (communication)

1. Rear communication line; Rear link line

1. It is not the rear communication line.; It's not a rear connection.

1. It's not the rear communication line.; It's not a rear connection.

1. Was the rear communication line.

1. Rear communication line.; Rear connection line.

1. Not a rear communication line.; Not connected to the rear lines.

1. Wasn't the rear communication line.; Wasn't a rear connection.

1. Probably a rear communication line.; Probably the rear lines.

1. Was not a rear communication line.; Was not a rear connection.

1. Wasn't the rear communication line.; Wasn't the rear connection.

1. Probably the rear communication line.; Probably a rear connection.

1. Was not the rear communication line.; Was not a rear connection.

1. If/when the rear communication line…; If the rear communication line were…

1. If it were the rear communication line; If the rear communication line existed

1. If/when the rear communication line…; If there is a rear communication line…