Document creation system

A document creation system comprising:

• a processor configured to, when creating a document, create keyword objects by merging expression labels and attributes of keywords forming meaning of the document and to manage the keyword objects;
• wherein
• the processor is configured to input text to the document, keyword object placement means configured to place, in any position of the text, a keyword object managed by the processor,
• the processor is configured to input attribute values to the keyword objects,
• the processor is configured to record and read the created keyword object-placed document,
• the processor is configured to delete a keyword object and record a document including only attribute values as a plain text,
• the processor is configured to re-objectize a keyword in the plain text so that the keyword object-placed document is restored, and
• the processor is configured to search a keyword object corresponding to a keyword input during text input from the keyword objects managed by the processor, and to insert a searched keyword object.