Grouping
Set	Contrast	Context	Target	Competitor	Unrelated	Unrelated
1	Fricative	Unrounded	seed	sheep	Bean	pail
		Rounded	soup	shoot	Bite	pit
	Vowel	/ʃ/	sheep	shoot	Pail	pit
		/s/	seed	soup	Bean	bite
2	Fricative	Unrounded	seat	sheet	Bug	pill
		Rounded	suit	shoes	Back	pat
	Vowel	/ʃ/	sheet	shoes	Pill	pat
		/s/	seat	suit	Bug	back
3	Fricative	Unrounded	cent	shell	Bath	pal
		Rounded	sword	shore	Beer	pine
	Vowel	/ʃ/	shell	shore	Pal	pine
		/s/	cent	sword	Bath	beer
4	Fricative	Unrounded	sip	shin	Butt	path
		Rounded	soot	shook	bone	pick
	Vowel	/ʃ/	shin	shook	path	pick
		/s/	sip	soot	butt	bone
5	Fricative	Unrounded	cell	shed	bell	peak
		Rounded	soap	show	bear	peg
	Vowel	/ʃ/	shed	show	peak	peg
		/s/	cell	soap	bell	bear
6	Fricative	Unrounded	self	chef	bet	pack
		Rounded	sore	shorts	bum	pig
	Vowel	/ʃ/	chef	shorts	pack	pig
		/s/	self	Sore	bet	bum