*SUPPORT*
IN: dax tufa lug OUT: YELLOW GREEN
IN: fep fep OUT: RED RED
IN: fep tufa fep OUT: RED RED
IN: fep lug wif OUT: RED YELLOW PINK
IN: wif lug OUT: PINK YELLOW
IN: lug OUT: YELLOW
IN: wif tufa lug OUT: YELLOW PINK
IN: fep dax tufa dax gazzer wif OUT: PINK RED GREEN GREEN
IN: fep zup OUT: RED RED RED
IN: lug lug OUT: YELLOW YELLOW
IN: dax dax tufa wif OUT: GREEN PINK GREEN
IN: dax gazzer dax OUT: GREEN GREEN
IN: fep dax dax fep gazzer lug zup OUT: YELLOW YELLOW YELLOW RED GREEN GREEN RED
IN: fep OUT: RED

*QUERY*
IN: dax gazzer dax fep gazzer lug tufa lug OUT: YELLOW YELLOW GREEN RED GREEN
IN: wif OUT: PINK
IN: wif tufa dax zup OUT: GREEN PINK GREEN PINK GREEN PINK
IN: lug wif tufa lug gazzer wif OUT: PINK YELLOW YELLOW PINK
IN: dax tufa fep OUT: RED GREEN
IN: lug tufa fep OUT: RED YELLOW
IN: lug tufa dax zup OUT: GREEN YELLOW GREEN YELLOW GREEN YELLOW
IN: dax fep gazzer dax OUT: GREEN GREEN RED
IN: dax tufa wif OUT: PINK GREEN
IN: lug tufa dax OUT: GREEN YELLOW

*GRAMMAR*
wif -> PINK 
 lug -> YELLOW 
 dax -> GREEN 
 fep -> RED 
 x1 gazzer x2 -> [x2] [x1] 
 u1 tufa u2 -> [u2] [u1] 
 x1 zup -> [x1] [x1] [x1] 
 u1 x1 -> [u1] [x1] 
 