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

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

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