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

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

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