IN: To maintain lactation, a dairy cow must be bred and produce calves. Depending on market conditions, the cow may be bred with a ''dairy bull'' or a ''beef bull.'' Female calves (heifers) with dairy breeding may be kept as replacement cows for the dairy herd. If a replacement cow turns out to be a substandard producer of milk, she then goes to market and can be slaughtered for beef. Male calves can either be used later as a breeding bull or sold and used for veal or beef. Dairy farmers usually begin breeding or artificially inseminating heifers around 13 months of age. A cow's gestation period is approximately nine months. Newborn calves are removed from their mothers quickly, usually within three days, as the mother/calf bond intensifies over time and delayed separation can cause extreme stress on both cow and calf.
do cows only produce milk when they have babies?

OPTIONS:
- no
- yes

OUT: yes

IN: Puerto Rico (Spanish for ''Rich Port''), officially the Commonwealth of Puerto Rico (Spanish: Estado Libre Asociado de Puerto Rico, lit. ''Free Associated State of Puerto Rico'') and briefly called Porto Rico, is an unincorporated territory of the United States located in the northeast Caribbean Sea, approximately 1,000 miles (1,600 km) southeast of Miami, Florida.
is puerto rico part of the continental usa?

OPTIONS:
- no
- yes

OUT: no

IN: In the Army, Air Force, and Marine Corps, all ranks of sergeant are termed NCOs, as are corporals in the Army and Marine Corps. A Marine Corps lance corporal (E-3) is not an NCO, but rather junior enlisted. The rank of corporal (E-4) in the Army is a junior NCO, and is to be shown the same respect as any other NCO. In the United States Air Force, E-5 (staff sergeant) and E-6 (technical sergeant) are classified under the NCO tier, while E-7 (master sergeant), E-8 (senior master sergeant), and E-9 (chief master sergeant) are considered senior non-commissioned officers (SNCOs). In the Navy and Coast Guard, all ranks of petty officer are so designated. Junior NCOs (E-4 through E-6 grade), or simply ''NCOs'' (E-4 and E-5 only) in Marine Corps usage, and function as first-tier supervisors and technical leaders.
is a e4 in the navy a nco?

OPTIONS:
- no
- yes

OUT: yes

IN: Monaco (/mnko/ ( listen); French pronunciation: (mnako)), officially the Principality of Monaco (French: Principaute de Monaco), is a sovereign city-state, country and microstate on the French Riviera in Western Europe. France borders the country on three sides while the other side borders the Mediterranean Sea. Monaco has an area of 2.02 km (0.78 sq mi) and a population of about 38,400, according to the last census of 2016. With 19,009 inhabitants per km2, it is the second-smallest and most densely populated sovereign state in the world. Monaco has a land border of 5.47 km (3.40 mi), a coastline of 3.83 km (2.38 mi), and a width that varies between 1,700 and 349 m (1,859 and 382 yd). The highest point in the country is a narrow pathway named Chemin des Revoires on the slopes of Mont Agel, in the Les Revoires Ward, which is 161 metres (528 feet) above sea level. Monaco's most populous Quartier is Monte Carlo and the most populous Ward is Larvotto/Bas Moulins. Through land reclamation, Monaco's land mass has expanded by 20 percent; in 2005, it had an area of only 1.974 km (0.762 sq mi). Monaco is known as a playground for the rich and famous, due to its tax laws. In 2014, it was noted about 30% of the population was made up of millionaires, more than in Zurich or Geneva.
is there a border between monaco and france?

OPTIONS:
- no
- yes

OUT:
no