In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

Ex Input:
Emery boards are generally less abrasive than the metal nail files, and hence, emery boards may take longer to file down nails than metal nail files. However, nail files may play a role in disease transmission if they are used on more than one person without adequate sterilization. Emery boards are usually less expensive than metal nail files, therefore emery boards can be economically disposed of after use on a single person. The nail can be smoothed and shaped accurately by taking light, even strokes in one direction across the top of the nail. Twenty to thirty easy strokes can typically shorten excessively long fingernails, while five to ten strokes are sufficient for shaping the nails.

Ex Output:
what is the difference between emery board and nail file


Ex Input:
Alternators are used in modern automobiles to charge the battery and to power the electrical system when its engine is running.

Ex Output:
what is the role of alternator in car


Ex Input:
Loans issued to full-time students are interest free while a student is in full-time studies. Students receiving a Canada Student Loan (CSL) for the first time on or after August 1, 1995, are eligible for up to 340 weeks (~ 6.5 years) of interest-free assistance. Students in doctoral programs are eligible for an additional 60 weeks, up to 400 weeks (~ 7.5 years). Students with permanent disabilities and students who received their first CSL prior to August 1, 1995 are eligible for up to 520 weeks of assistance (10 years).

Ex Output:

when does interest start on student loans canada