(Reuters) - Twitter Inc will lay off up to 336 employees, or about 8 percent of its workforce, as co-founder Jack Dorsey readies to revive growth in the microblogging service provider's user base in his second stint as chief executive.
Refer to the input text as context and select the correct relationship between 'Twitter' and 'microblogging' from the available options.
Options: product/material produced, stock exchange, member of, operator