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

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

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