diff --git a/engine/config.go b/engine/config.go
index 5becee6..890dce1 100644
--- a/engine/config.go
+++ b/engine/config.go
@@ -82,6 +82,5 @@ func (self *Configuration) IntArray(key string, def []int) []int {
 }
 
 func (self *Configuration) GetRandomUUID() string {
-	u, _ := uuid.NewV4()
-	return u.String()
+	return uuid.NewV4().String()
 }
diff --git a/nlp/accents.go b/nlp/accents.go
index a50fdaa..611ce49 100644
--- a/nlp/accents.go
+++ b/nlp/accents.go
@@ -6,7 +6,7 @@ type Accent struct {
 	who AccentsModule
 }
 
-//Create the appropriate accents module (according to received options), and create a wrapper to access it.
+// Create the appropriate accents module (according to received options), and create a wrapper to access it.
 func NewAccent(lang string) *Accent {
 	this := Accent{}
 	if lang == "es" {
@@ -21,7 +21,7 @@ func NewAccent(lang string) *Accent {
 	return &this
 }
 
-//Wrapper methods: just call the wrapped accents module.
+// Wrapper methods: just call the wrapped accents module.
 func (this *Accent) FixAccentutation(candidates *set.Set, suf *sufrule) {
 	this.who.FixAccentuation(candidates, suf)
 }
diff --git a/nlp/preftree.go b/nlp/preftree.go
index 4dfabc8..2abdeb7 100644
--- a/nlp/preftree.go
+++ b/nlp/preftree.go
@@ -12,59 +12,59 @@ func NewList() *List {
 }
 
 /*
-func (this *List) push(c rune, wordEnd bool) interface {} {
-	n := this.find(c)
-	if n == nil {
-		if !wordEnd {
-			n = NewListRecBase(c)
-		} else {
-			n = NewListRecBase(c)
-		}
+	func (this *List) push(c rune, wordEnd bool) interface {} {
+		n := this.find(c)
+		if n == nil {
+			if !wordEnd {
+				n = NewListRecBase(c)
+			} else {
+				n = NewListRecBase(c)
+			}
 
-		if this.end != nil {
-			this.end.next = n
-		} else {
-			this.begin = n
-		}
-		this.end = n
-	} else if wordEnd {
-		tmp := this.begin
-		var prev *ListRecBase = nil
-		for tmp != n {
-			prev = tmp
-			tmp = tmp.next
-		}
+			if this.end != nil {
+				this.end.next = n
+			} else {
+				this.begin = n
+			}
+			this.end = n
+		} else if wordEnd {
+			tmp := this.begin
+			var prev *ListRecBase = nil
+			for tmp != n {
+				prev = tmp
+				tmp = tmp.next
+			}
 
-		if n == this.end {
-			this.end = nil
-		}
+			if n == this.end {
+				this.end = nil
+			}
 
-		ntmp := n.next
-		l := n.nextList
-		n = NewListRecData(c)
-		n.next = ntmp
-		n.nextList = l
+			ntmp := n.next
+			l := n.nextList
+			n = NewListRecData(c)
+			n.next = ntmp
+			n.nextList = l
 
-		if prev != nil {
-			prev.next = n
-		} else {
-			this.begin = n
-		}
+			if prev != nil {
+				prev.next = n
+			} else {
+				this.begin = n
+			}
 
-		if this.end == nil {
-			this.end = n
+			if this.end == nil {
+				this.end = n
+			}
 		}
-	}
 
-	if !wordEnd {
-		if n.nextList == nil {
-			n.nextList = NewList()
+		if !wordEnd {
+			if n.nextList == nil {
+				n.nextList = NewList()
+			}
+			return n.nextList
+		} else {
+			return n
 		}
-		return n.nextList
-	} else {
-		return n
 	}
-}
 */
 func (this *List) find(c rune) *ListRecBase {
 	if this.begin == nil {
diff --git a/terminal/terminal.go b/terminal/terminal.go
index e0ff2ca..f35eb4c 100644
--- a/terminal/terminal.go
+++ b/terminal/terminal.go
@@ -70,9 +70,9 @@ func Errorf(message string, params ...interface{}) {
 }
 
 func ErrorI(messages ...interface{}) {
-	red.Print(messages)
+	red.Print(messages...)
 }
 
 func ErrorIln(messages ...interface{}) {
-	red.Println(messages)
+	red.Println(messages...)
 }