wang2vec: fix for consequtive downsampled collocators
diff --git a/word2vecExt.c b/word2vecExt.c
index 7dbc168..7de104a 100644
--- a/word2vecExt.c
+++ b/word2vecExt.c
@@ -790,7 +790,7 @@
 			continue;
 		}
 		word = sen[sentence_position];
-    if (word == -2)
+    while (word == -2)
       word = sen[++sentence_position];
 		if (word == -1)
 			continue;