Now and then they will fly a short distance to catch an insect and then return.
(they; to return; T:then) (they; will fly; a short distance; to catch an insect and then return; T:Now; T:then) Context(they will fly,List([13, 26))):(they; will fly a short distance to catch; an insect)
they will fly,List([13, 26))
they they they
to return will fly will fly a short distance to catch
T:then
a short distance to catch an insect and then return T:Now T:then
an insect