. is written . Stress Indonesian has light stress that falls on either the final or penultimate syllable, depending on regional variations as well as the presence of the schwa () in a word. It is generally the penultimate syllable that is stressed, unless its vowel is a schwa . If the penult has a schwa, then stress moves to the ante-penultimate syllable if there is one, even if that syllable has a schwa as well; if the word is disyllabic, the stress is final. In disyllabic stress with a closed penultimate syllable, such as tinggal ('stay') and rantai ('chain'), stress falls on the penult. However, there is some disagreement among linguists over whether stress is phonemic (unpredictable), with some analyses suggesting that there is no underlying stress in Indonesian. Rhythm The classification of languages based on rhythm can be problematic. Nevertheless, acoustic measurements suggest that Indonesian has more syllable-based rhythm than British English, even though doubts remain about whether the syllable is the appropriate unit for the study of Malay prosody. Grammar Word order in Indonesian is generally subject-verb-object (SVO), similar to that of most modern European languages, such as English. However considerable flexibility in word ordering exists, in contrast with languages such as Japanese or Korean, for instance, which always end clauses with verbs. Indonesian, while allowing for relatively flexible word orderings, does not mark for grammatical case, nor does it make use of grammatical gender. Affixes Indonesian words are composed of a root or a root plus derivational affixes. The root is the primary lexical unit of a word and is usually bisyllabic, of the shape CV(C)CV(C). Affixes are "glued" onto roots (which are either nouns or verbs) to alter or expand the primary meaning associated with a given root, effectively generating new words, for example, masak (to cook) may become memasak (cooking), memasakkan (cooks for), dimasak (is cooked), pemasak (a cook), masakan (a meal, cookery), termasak (accidentally cooked). There are four types of affixes: prefixes (awalan), suffixes (akhiran), circumfixes (apitan) and infixes (sisipan). Affixes are categorized into noun, verb, and adjective affixes. Many initial consonants alternate in the presence of prefixes: sapu (to sweep) becomes menyapu (sweeps/sweeping); panggil (to call) becomes memanggil (calls/calling), tapis (to sieve) becomes menapis (sieves). Other examples of the use of affixes to change the meaning of a word can be seen with the word ajar (to teach): ajar = to teach