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

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

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