Small group: MOB, SB, BL
5/17/2010

Focused on grouping measurements under observations.

initially
o1[m1] - time      
   alt: time[m1]
o2[m2] - time
   alt: utc[m2]
o3[m3] - stream
   alt: dis[m3]
o4[m4] - stream
   alt: temp[m4]

after merge:
o1[m1,m2] - time
  alt: time,utc[]
o3[m3,m4] - stream
  alt: dis,temp[]

cxt[o3 "during" o1]
cxt[dis,temp "at"
time,utc]


Attribute: a1
...
Same individual or specimen as: Entity[a2, a3] [drop down v] (add) (remove)