IN: Copyright renewal has largely lost its significance for works copyrighted in the US in 1964 or after due to the Copyright Renewal Act of 1992. This law removed the requirement that a second term of copyright protection is contingent on a renewal registration. The effect was that any work copyrighted in the US in 1964 or after had a copyright term of 75 years, whether or not a formal copyright renewal was filed. There are some legal reasons for filing such renewal registrations. A further amendment to US copyright law in 1998 extended the total term of protection to 95 years, which now applies to all works copyrighted in 1964 or after.
can a copyright be renewed once it expires?

OPTIONS:
- no
- yes

OUT: yes

IN: A fiddle is a bowed string musical instrument, most often a violin. It is a colloquial term for the violin, used by players in all genres including classical music. Fiddle playing, or fiddling, refers to various styles of music. The fiddle is part of many traditional (folk) styles of music which are aural traditions, taught 'by ear' rather than via written music.
is there a difference between a violin and a fiddle?

OPTIONS:
- no
- yes

OUT: no

IN: The return address is not required on postal mail. However, lack of a return address prevents the postal service from being able to return the item if it proves undeliverable; such as from damage, postage due, or invalid destination. Such mail may otherwise become dead letter mail.
can i send a letter in the mail without a return address?

OPTIONS:
- no
- yes

OUT: yes

IN: The light-independent reactions, or dark reactions, of photosynthesis are chemical reactions that convert carbon dioxide and other compounds into glucose. These reactions occur in the stroma, the fluid-filled area of a chloroplast outside the thylakoid membranes. These reactions take the products (ATP and NADPH) of light-dependent reactions and perform further chemical processes on them. There are three phases to the light-independent reactions, collectively called the Calvin cycle: carbon fixation, reduction reactions, and ribulose 1,5-bisphosphate (RuBP) regeneration.
is carbon fixation the same as calvin cycle?

OPTIONS:
- no
- yes

OUT:
no