*SUPPORT*
IN: wif gazzer blicket OUT: BLUE GREEN
IN: zup gazzer blicket fep blicket OUT: PURPLE GREEN GREEN GREEN PURPLE GREEN
IN: blicket tufa blicket OUT: GREEN GREEN
IN: zup tufa wif OUT: PURPLE BLUE
IN: zup lug tufa wif OUT: PURPLE RED BLUE
IN: lug blicket tufa blicket OUT: RED GREEN GREEN
IN: lug gazzer wif OUT: RED BLUE
IN: blicket gazzer zup fep blicket OUT: GREEN PURPLE GREEN GREEN GREEN PURPLE
IN: wif gazzer lug OUT: BLUE RED
IN: lug gazzer lug OUT: RED RED
IN: blicket tufa wif fep wif OUT: GREEN BLUE BLUE BLUE GREEN BLUE
IN: blicket gazzer wif OUT: GREEN BLUE
IN: lug OUT: RED
IN: zup OUT: PURPLE

*QUERY*
IN: wif gazzer wif OUT: BLUE BLUE
IN: blicket blicket lug gazzer zup OUT: GREEN GREEN RED PURPLE
IN: wif fep zup OUT: BLUE PURPLE PURPLE BLUE
IN: wif lug tufa wif OUT: BLUE RED BLUE
IN: wif gazzer zup OUT: BLUE PURPLE
IN: wif tufa wif OUT: BLUE BLUE
IN: blicket tufa lug OUT: GREEN RED
IN: zup tufa lug OUT: PURPLE RED
IN: blicket tufa wif OUT: GREEN BLUE
IN: wif OUT: BLUE

*GRAMMAR*
wif -> BLUE 
 blicket -> GREEN 
 lug -> RED 
 zup -> PURPLE 
 x1 fep u1 -> [x1] [u1] [u1] [x1] 
 u1 tufa u2 -> [u1] [u2] 
 u1 gazzer u2 -> [u1] [u2] 
 u1 x1 -> [u1] [x1] 
 