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

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

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