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

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

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