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

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

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