Alex Da Silva, a salsa dance instructor and choreographer for Fox's "So You Think You Can Dance," was arrested Saturday on suspicion of sexually assaulting four of his students, according to a statement from the Los Angeles Police Department. Da Silva, 41, is accused of assaulting the students in his two homes in the San Fernando Valley over the last six years, police said. He is being held in lieu of $3.8 million bail. Authorities said the four victims were all students of Da Silva at the time of the assaults.
OPTIONS:
- yes
- no
Question: Alex Da Silva is a student of salsa dance.
no

ISSUE 172, March 5, 2009: The world has lost Manx in the Isle of Man, Ubykh in Turkey and last year Alaska's last native speaker of Eyak, Marie Smith Jones, died, taking the Aboriginal language with her. Of the 6,900 languages spoken in the world, some 2,500 are endangered, the UN's cultural agency UNESCO said this week as it released its latest atlas of world languages. That represents a multi-fold increase from the last atlas compiled in 2001 which listed 900 languages threatened with extinction. But experts say this is more the result of better research tools than of an increasingly dire situation for the world's many tongues.
OPTIONS:
- yes
- no
Question: 2,500 languages are in danger of extinction.
yes

Researchers are aware that chimps have used similar methods in the past, but it was not fully known if the tools they used were designed specifically for the task of gathering the insects. Of all the tools the chimps left behind and Sanz's team recovered, 80% were custom made by their owners. Sanz says the new study has determined that their methods have since evolved, proving previous hypotheses.
OPTIONS:
- yes
- no
Question: Chimps design tools to catch termites.
no