// See the codex to learn more about WP text domains:
// http://codex.wordpress.org/Translating_WordPress#Localization_Technology
// Example Tribe domains: 'tribe-events-calendar', 'tribe-events-calendar-pro'...

add_filter('gettext', 'theme_filter_text', 10, 3);

function theme_filter_text( $translations, $text, $domain ) {

    // Copy and modify the following if {} statement to replace multiple blocks of text
    // Match the text you want you want to translate, preferably also match the text domain
    if($text === 'Venue' && $domain === 'tribe-events-calendar') {

        // The custom text you want instead
        $text = 'Location';

    }

    // Copy and modify the following if {} statement to replace multiple blocks of text
    // Match the text you want you want to translate, preferably also match the text domain
    if($text === 'Organizer' && $domain === 'tribe-events-calendar') {

        // The custom text you want instead
        $text = 'Person in charge';

    }


    return $text;
}