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

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

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