speaker	word	vowel	F1	F2
Ben	heed	i	294	2321
Ben	hid	I	422	1918
Ben	hayed	e	384	2140
Ben	head	E	552	1771
Ben	had	a	703	1647
Ben	hod	A	878	1969
Ben	HUD	v	600	1500
Ben	hawed	O	800	923
Ben	hoed	o	421	1170
Ben	whod	u	320	1534