Self-made graphic converted from the following vector PostScript source code:

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-40 0 translate 1 0 0 setrgbcolor/Times-Roman 30 selectfont
71 65 moveto 543 0 rlineto 0 414 rlineto -543 0 rlineto closepath stroke
gsave 33.69 rotate 365 149 moveto(Y)show -2 0 rmoveto(es)show grestore
gsave -33.69 rotate 130 510 moveto(No)show grestore
gsave 46.7788 rotate 226 21 moveto(Y)show -2 0 rmoveto(es)show grestore
gsave -39.5226 rotate 70 322 moveto(No)show grestore
gsave 46.3119 rotate 365.5 -135 moveto(Y)show -2 0 rmoveto(es)show grestore
gsave -37.4054 rotate 246 432 moveto(No)show grestore
4 setlinewidth 1 setlinecap/Times-Roman 26 selectfont
85 454 moveto(To determine the phonemic status of two sounds:)show
0 setgray/Times-Roman 24 selectfont
220 419 moveto(Are the sounds in com-)show
216 392 moveto(plementary distribution?)show
119 271 moveto(Are the sounds pho-)show
120 244 moveto(netically similar?)show
336 281 moveto(Does substituting one)show
339 254 moveto(sound for the other)show
339 227 moveto(change meaning?)show
77 130 moveto(They are allo-)show 78 103 moveto(phones of the)show
78 76 moveto(same phoneme.)show
277 130 moveto(They belong to)show 281 103 moveto(two separate)show
281 76 moveto(phonemes.)show
477 121 moveto(They are in)show 475 94 moveto(free variation.)show
326 385 moveto -135 -90 rmoveto 135 90 rlineto 120 -80 rlineto stroke
206 237 moveto -78 -83 rmoveto 78 83 rlineto 100 -82.5 rlineto stroke
410 221 moveto -64 -67 rmoveto 64 67 rlineto 102 -78 rlineto stroke
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