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

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

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