{"result":{"text":"Let space f open parentheses x close parentheses equals open curly brackets table attributes columnalign left columnspacing 1.4ex end attributes row cell 1 minus vertical line x vertical line comma end cell cell vertical line x vertical line less or equal than 1 end cell row cell 0 comma end cell cell vertical line x vertical line greater than 1 end cell end table close a n d space g open parentheses x close parentheses equals f open parentheses x plus 1 close parentheses plus f open parentheses x minus 1 close parentheses"},"status":"ok"}