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

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

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