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

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

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