Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.

Q: Jan Muhlstein (born 3 July 1949 in Most, Czechoslovakia) is a journalist, German Jewish activist and the former chair of the Union of Progressive Jews in Germany.

A: Which language or languages is Jan Mühlstein fluent in?
****
Q: Nowadays they are giving homework even during the holidays and I hate that very much. But I think there is a reason for it. Homework is given so that we can remember whatever we have learnt. Regular drilling and repetition make perfect. But teachers have started to give too much homework. Anything in excess is bad. Jane What's the use of just homework without allowing children to get an insight into the subject? It just makes them bookworms but nothing else. Homework such as writing some things 5 times at home will just make them memorize things but not put them into use. I regret to say that teachers find it easy to bundle the children with homework rather than making them get interested to understand what they learn. The same trend continues even in college. I find that most of the so-called high scorers are unable to answer simple things in an interview. Sally It is OK to give homework. But it should be given less. We are spending most of our time in school and at least we must be free in our home. If you give homework, we will be very tired and we wouldn't be able to pay attention to extra-curricular activities, which in turn may affect our physical and mental health. So please give less homework to us. Johnson It is part of our work to give students homework. There will be some punishments if we won't do our work. So I have to do that though I know such a teacher is not liked by students.

A: Who thinks homework should help students learn something practical?
****
Q: Transcription factors belonging to the nuclear factor of activated T cells (NFAT) family regulate the expression of cytokine genes and other inducible genes during the immune response. The functions of NFAT proteins are directly controlled by the calcium- and calmodulin-dependent phosphatase calcineurin. Here we show that the binding of calcineurin to NFAT is substantially increased when calcineurin is activated with calmodulin and calcium. FK506.FKBP12 drug-immunophilin complexes inhibited the interaction of NFAT with activated calcineurin much more effectively than they inhibited the interaction with inactive calcineurin, suggesting that part of the interaction with activated calcineurin involved the enzyme active site. We have previously shown that NFAT is targeted to inactive calcineurin at a region distinct from the calcineurin active site (Aramburu, J., Garcia-Cozar, F. J., Raghavan, A., Okamura, H., Rao, A., and Hogan, P. G. (1998) Mol. Cell 1, 627-637); this region is also involved in NFAT binding to activated calcineurin, since binding is inhibited by an NFAT peptide spanning the calcineurin docking site on NFAT. The interacting surfaces are located on the catalytic domain of the calcineurin A chain and on an 86-amino acid fragment of the NFAT regulatory domain. NFAT binding to the calcineurin catalytic domain was inhibited by the calcineurin autoinhibitory domain and the RII substrate peptide, which bind in the calcineurin active site, as well as by the NFAT docking site peptide, which binds to a region of calcineurin distinct from the active site. We propose that, in resting cells, NFAT is targeted to a region of the calcineurin catalytic domain that does not overlap the calcineurin active site. Upon cell activation, displacement of the autoinhibitory domain by calmodulin binding allows NFAT to bind additionally to the calcineurin active site, thus positioning NFAT for immediate dephosphorylation at functional phosphoserine residues.

A:
Which calcium/calmodulin dependent protein phosphatase is involved in the activation of the family of NFAT transcription factors (Nuclear Factors of Activated T cells)?
****