Multiple Rows And Columns

I have a sheet that is organised as follows:
a) Column A contains 50 names, all unique. R1C1 heading is "Name".
b) Column B to Column H are for some text that can contain special characters, numbers, spaces etc.
c) R1C2 heading: "Day 1"
d) R1C3 heading: "Day 2". and so on till R1C8 having heading as "Day 7"
e) All the cells are filled in the specified range as specified in (b) above.

In summary, each of the names will have 7 different tasks associated with it in the row. These tasks can repeat for all the names.

For example: Consider the below set of data for 3 rows and 7 columns (spaces are used as column delimiter. In reality, spaces can form part of the tasks for each name):

Name D1 D2 D3 D4 D5 D6 D7
-------------------------------------
aaaa T1 T1 T1 T2 T3 T4 T5
bbbb T1 T2 T3 T3 T3 T4 T5
cccc T1 T4 T4 T4 T4 T4 T4

I hope its clear till this point.

Now my requirements are as follows:
a) Find out all unique elements from the set of tasks across all days and list them from 100th row onwards with each unique entry in new row.
b) For each of the unique tasks, list the names that have worked on that task in the same row.

For example, the output should be as follows:
T1 | aaaa, bbbb, cccc
T2 | aaaa, bbbb
T3 | aaaa, bbbb
T4 | aaaa, bbbb, cccc
T5 | aaaa, bbbb

The character "|" above is used as a seperator for columns.