Andalusian Spanish from the surrounding "Campo de Gibraltar" is the main constituent of "Llanito", but it is also heavily influenced by British English. However, it borrows words and expressions of many other languages, with over 500 words of Genoese (Ligurian) medieval dialect (with additionally some of Hebrew origin). Its other main language constituents are Maltese and Portuguese. It often also involves code-switching from Spanish to English. Some "Llanito" words are also widely used in the neighbouring Spanish town of La Línea de la Concepción (due to the influx of people from La Línea working in Gibraltar over many years).