package main

import (
	"fmt"
	"strings"
)

func main() {
	var n int
	if _, err := fmt.Scan(&n); err != nil {
		return
	}
	uniqueNames := make(map[string]bool)
	for i := 0; i < n; i++ {
		var s string
		fmt.Scan(&s)
		s = strings.ReplaceAll(s, "u", "oo")
		for strings.Contains(s, "kh") {
			s = strings.ReplaceAll(s, "kh", "h")
		}
		uniqueNames[s] = true
	}
	fmt.Println(len(uniqueNames))
}