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

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

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