IN: James Watt  (30 January 1736 (19 January 1736 OS) - 25 August 1819) was a Scottish inventor, mechanical engineer, and chemist who improved on Thomas Newcomen's 1712 Newcomen steam engine with his Watt steam engine in 1781, which was fundamental to the changes brought by the Industrial Revolution in both his native Great Britain and the rest of the world. While working as an instrument maker at the University of Glasgow, Watt became interested in the technology of steam engines. He realised that contemporary engine designs wasted a great deal of energy by repeatedly cooling and reheating the cylinder. Watt introduced a design enhancement, the separate condenser, which avoided this waste of energy and radically improved the power, efficiency, and cost-effectiveness of steam engines.

From an early age Watt was very interested in chemistry. In late 1786, while in Paris, he witnessed an experiment by Berthollet in which he reacted hydrochloric acid with manganese dioxide to produce chlorine. He had already found that an aqueous solution of chlorine could bleach textiles, and had published his findings, which aroused great interest among many potential rivals. When Watt returned to Britain, he began experiments along these lines with hopes of finding a commercially viable process. He discovered that a mixture of salt, manganese dioxide and sulphuric acid could produce chlorine, which Watt believed might be a cheaper method. He passed the chlorine into a weak solution of alkali, and obtained a turbid solution that appeared to have good bleaching properties. He soon communicated these results to James McGrigor, his father-in-law, who was a bleacher in Glasgow. Otherwise he tried to keep his method a secret.  With McGrigor and his wife Annie, he started to scale up the process, and in March 1788, McGrigor was able to bleach 1500 yards of cloth to his satisfaction. About this time Berthollet discovered the salt and sulphuric acid process, and published it so it became public knowledge. Many others began to experiment with improving the process, which still had many shortcomings, not the least of which was the problem of transporting the liquid product. Watt's rivals soon overtook him in developing the process, and he dropped out of the race. It was not until 1799, when Charles Tennant patented a process for producing solid bleaching powder (calcium hypochlorite) that it became a commercial success.  By 1794 Watt had been chosen by Thomas Beddoes to manufacture apparatus to produce, clean and store gases for use in the new Pneumatic Institution at Hotwells in Bristol. Watt continued to experiment with various gases for several years, but by 1797 the medical uses for the "factitious airs" had come to a dead end.

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OUT: Watt continued to experiment with various gases for several years, but by 1797 the medical uses for the "factitious airs" had come to a dead end.

input: Two of Ablett's brothers played in the Victorian Football League - Kevin Ablett, who played for Hawthorn, Richmond and Geelong, and Geoff Ablett, who played for Hawthorn, Richmond and St Kilda.  Ablett's eldest son, Gary Ablett Jr., has followed in his footsteps to play for Geelong. In 2007 and 2009, Ablett Jr. won the Cats' best and fairest award, emulating a feat established by his father in his first season with the Cats back in 1984; he also won the Brownlow Medal in 2009 and 2013. Another son, Nathan, was drafted in 2004 (48th pick) by Geelong under the father-son rule. Nathan initially refused to play AFL Football because of his father's experience with the media, but, with encouragement from the club, was signed ahead of the 2005 AFL Season and has since established himself in the full forward role Gary Snr made his own. On 29 September 2007, both Gary Jr. and Nathan contributed to Geelong winning its first flag in 44 years, capturing the premiership that proved elusive to Gary Snr in his 12 years at the club. Nathan retired suddenly before the 2008 season, but he and his brother Gary Jr. were members of the Gold Coast Football Club's inaugural team for the 2011 season.  In addition to his sons, Ablett has a nephew, Luke Ablett, who played for the Sydney Swans and won a premiership with them in 2005. Two other nephews, from his sister's marriage to Hawthorn legend Michael Tuck, also played in the AFL - Richmond's Shane Tuck and Travis Tuck, who played for Hawthorn.

Answer this question "Was that the only ones to play football from his family?"
output:
Another son, Nathan, was drafted in 2004 (48th pick) by Geelong under the father-son rule.