You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
Chinese_characters

Context:
A commonly seen example is the double happiness symbol 囍, formed as a ligature of 喜喜 and referred to by its disyllabic name (simplified Chinese: 双喜; traditional Chinese: 雙喜; pinyin: shuāngxǐ). In handwriting, numbers are very frequently squeezed into one space or combined – common ligatures include 廿 niàn, "twenty", normally read as 二十 èrshí, 卅 sà, "thirty", normally read as 三十 sānshí, and 卌 xì "forty", normally read as 四十 "sìshí". In some cases counters are also merged into one character, such as 七十人 qīshí rén "seventy people". Another common abbreviation is 门 with a "T" written inside it, for 問題, 问题, wèntí ("question; problem"), where the "T" is from pinyin for the second syllable tí 题. Since polysyllabic characters are often non-standard, they are often excluded incharcter dictionaries.

Question:
What is a commonly seen example?

double happiness symbol