user: Who is the mercedes formula 1 team principal?

assistant: Toto Wolff is the team principal and CEO of the Mercedes-AMG PETRONAS F1 team

user: From the passage provided, list the partners with whom Martina Hingis won the doubles Grand Slam in 1998

assistant: <think>
In 1998, Hingis won all four of the Grand Slam women's doubles titles, only the fourth in women's tennis history to do so, (the Australian Open with Mirjana Lučić and the other three events with Novotná), and she became only the third woman to hold the No. 1 ranking in both singles and doubles simultaneously. She also retained her Australian Open singles title by beating Conchita Martínez in straight sets in the final. Hingis, however, lost in the final of the US Open to Lindsay Davenport. Davenport ended an 80-week stretch Hingis had enjoyed as the No. 1 singles player in October 1998, but Hingis finished the year by beating Davenport in the final of the WTA Tour Championships.</think>
- Mirjana Lučić
- Jana Novotná

user: What is a laser and who created it?

assistant: <think>
A laser is a device that emits light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. The word laser is an anacronym that originated as an acronym for light amplification by stimulated emission of radiation The first laser was built in 1960 by Theodore Maiman at Hughes Research Laboratories, based on theoretical work by Charles H. Townes and Arthur Leonard Schawlow.

A laser differs from other sources of light in that it emits light that is coherent. Spatial coherence allows a laser to be focused to a tight spot, enabling applications such as laser cutting and lithography. Spatial coherence also allows a laser beam to stay narrow over great distances (collimation), enabling applications such as laser pointers and lidar (light detection and ranging). Lasers can also have high temporal coherence, which allows them to emit light with a very narrow spectrum. Alternatively, temporal coherence can be used to produce ultrashort pulses of light with a broad spectrum but durations as short as a femtosecond.

Lasers are used in optical disc drives, laser printers, barcode scanners, DNA sequencing instruments, fiber-optic, and free-space optical communication, semiconducting chip manufacturing (photolithography), laser surgery and skin treatments, cutting and welding materials, military and law enforcement devices for marking targets and measuring range and speed, and in laser lighting displays for entertainment. Semiconductor lasers in the blue to near-UV have also been used in place of light-emitting diodes (LEDs) to excite fluorescence as a white light source. This permits a much smaller emitting area due to the much greater radiance of a laser and avoids the droop suffered by LEDs; such devices are already used in some car headlamps.</think>
A laser is a device that emits light from an electromagnetic radiation source.  The first laser was built in 1960 by Theodore Maiman at Hughes Research Laboratories, based on theoretical work by Charles H. Townes and Arthur Leonard Schawlow.

Lasers emit a certain type of light. Light that is coherent. Coherence can be measured spatially or temporally. Spacial coherence allows laser beams to stay narrow over great distances. Temporal coherence can be used to produce ultrashort pules of light. 

Some example of the uses of lasers are optical disc drives, laser printers, barcode scanners, fiber optics and photolithography