diff --git a/data/syfeatures.tsv b/data/syfeatures.tsv
new file mode 100644
index 0000000..64e70b5
--- /dev/null
+++ b/data/syfeatures.tsv
@@ -0,0 +1,23 @@
+innames	synames	explanation
+1	rankDiff	SY_RD	rank difference: SY_W_RK1-SY_C_RK
+2	af	SY_C_LDAF	logdice with autofocus
+3	dice	SY_C_DICE	dice
+4	ld	SY_C_LD	logdice
+5	lfmd	SY_C_MI3	MI^3
+6	llfmd	SY_C_LEFTN_MI	PMI(!) with window [-1,-1] (the label is a bug)
+7	llr	SY_C_LL	loglikelihood
+8	lnpmi	SY_C_LEFTN_COUNT	raw count as left neighbour (the label is a bug)
+9	md	SY_C_MI2	MI^2
+10	npmi	SY_C_NPMI	nPMI
+11	pmi	SY_C_MI	MI
+12	rlfmd	SY_C_RIGHTN_MI	PMI(!) with window [1,1], i.e. just the right neighbour (the label is a bug)
+13	rnpmi	SY_C_RIGHTN_COUNT	raw count as right neighbour (the label is a bug)
+14	average	SY_W_AVG	average of output weights with autofocus
+15	cprob	SY_W_CON	conorm of column normalized output weights with autofocus
+16	max	SY_W_MAX	max of output weights
+17	overall	SY_W_NSUM1	sum of output weights normalized by total sum over all columns with autofocus? 
+18	prob	SY_W_NSUM2	sum of output weights normalized by total sum over all columns (no autofocus)
+19	w2v.rank	SY_W_RK1	rank by SY_W_CON
+20	w2v.rank1	SY_W_RK2	rank by SY_W_NSUM2
+21	classic.rank	SY_C_RK	rank by SY_C_LD
+