"Standard bus" . . "Two-axle" . "rigid-bodied buses" . "rigid" . . . "two-axle" . "conventional-length" . "Full-size" . "standard/two-axle" . "full length" . "full-size" . "rigid trolleybuses" . . . "full-size rigid" . "heavy-duty" . "rigid trolleybus" . "Rigid" . "Rigid bus" . "rigid bus" . "full-sized" . . "full-size bus" . "rigid chassis" . "(rigid)" . . . "medium-duty" . "Rigid bus" . "rigid (two-axle) buses" . "Twin-axle" . . "two-axle bus" . "non-articulated" . . . . . "plenibus" . "Full-size rigid" . "two-axle vehicles" . . . "Rigid (two-axle)" .