Contact with European languages also affected both written and spoken Tamil. Changes in written Tamil include the use of European-style punctuation and the use of consonant clusters that were not permitted in Middle Tamil. The syntax of written Tamil has also changed, with the introduction of new aspectual auxiliaries and more complex sentence structures, and with the emergence of a more rigid word order that resembles the syntactic argument structure of English. Simultaneously, a strong strain of linguistic purism emerged in the early 20th century, culminating in the Pure Tamil Movement which called for removal of all Sanskritic and other foreign elements from Tamil. It received some support from Dravidian parties and nationalists who supported Tamil independence. This led to the replacement of a significant number of Sanskrit loanwords by Tamil equivalents, though many others remain.