package main

import (
	"strings"
)

func first(list []string) string {
	if len(list) > 0 {
		return list[0]
	} else {
		return ""
	}
}

func contains(list []string, what string) bool {
	for _, value := range list {
		if value == what {
			return true
		}
	}
	return false
}

func containsEither(subject string, what ...string) bool {
	for _, str := range what {
		if strings.Contains(subject, str) {
			return true
		}
	}
	return false
}