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

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

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