Galician has both (from medieval fẽestra, the ancestor of standard Portuguese ) and the less frequently used and . As an alternative to (originally the genitive form), Italian has the pronoun , a cognate of the other words for "she", but it is hardly ever used in speaking. Spanish, Asturian, and Leonese and Mirandese and Sardinian come from Latin "wind" (cf. English window, etymologically 'wind eye'), and Portuguese , Galician , Mirandese from Latin * "small opening", a derivative of "door". Sardinian (alternative for /) comes from Old Italian and is similar to other Romance languages such as French (from Italian ), Portuguese , Romanian , Spanish , Catalan and Corsican (alternative for ). Classification and related languages The classification of the Romance languages is inherently difficult, because most of the linguistic area is a dialect continuum, and in some cases political biases can come into play. Along with Latin (which is not included among the Romance languages) and a few extinct languages of ancient Italy, they make up the Italic branch of the Indo-European family. Most classification schemes are, implicitly or not, historical and geographic, resulting in groupings such as Ibero- and Gallo-Romance. A major division can be drawn between Eastern and Western Romance, separated by the La Spezia-Rimini line. The classification of certain languages is always problematic and ambiguous. A tree model is often used, but the selection of criteria results in different trees. Some other classifications can involve ranking languages according to the degree of differentiation; by most measures, French is the most highly-differentiated Romance language, although Romanian has changed the greatest amount of its vocabulary, while Italian and Sardinian have changed the least. Standard Italian can be considered a "central" language, which is generally somewhat easy to understand to speakers of other Romance languages, whereas French and Romanian are peripheral and quite dissimilar from the rest of Romance. Proposed divisions There are various schemes used to subdivide the Romance languages. Three of the most common schemes are as follows: Italo-Western vs. Eastern vs. Southern. This is the scheme followed by Ethnologue, and is based primarily on the outcome of the ten monophthong vowels in Classical Latin. This is discussed more below. West vs. East. This scheme divides the various languages along the La Spezia–Rimini Line, which runs across north-central Italy just to the north of the city of Florence (whose speech forms the basis of standard