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

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

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