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

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

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