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

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

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