developing a ser ies of inc reas ing ly soph is t icated natura l language unders tand ing systems which will serve as an in tegrated in ter face to severa l faci l i t ies at the Pacif ic F leet Command Center : the In tegrated Data Base ( IDB ) , which conta ins information about ships , the i r read iness s tates , the i r capabi l i t ies , etc . ;